cornea Archives - Discovery Eye Foundation

We extend a heartfelt invitation to you to forge a vision legacy!

Join the Discovery Eye Foundation’s Vision Legacy Society!

By including us in your estate planning, you can make a significant impact on the preservation of vision through a gift that will transform countless lives.

Your Vision Legacy Gift could help fund our sight-saving initiatives.

Support the groundbreaking research and the development of preventive measures and innovative treatments for debilitating eye diseases, including:

Age-related Eye Diseases
Macular Degeneration (AMD)
Diabetic Retinopathy
Retinitis Pigmentosa
Glaucoma
Keratoconus
Dry Eye

WAYS TO GIVE

Include us in your will, living trust, or estate plan
Designate DEF as a beneficiary in your will, living trust, or estate plan
Explore IRA charitable rollover options
Contribute through donor-advised funds
Create a charitable gift annuity
Establish endowment gifts for sustained research funding

WHAT TO GIVE

Cash Donations
Stocks
Bonds
Mutual Funds
Retirement Plan Assets
Real Estate Contributions
Insurance Policies

Your Vision Legacy Society Gift will further our goal of saving vision and making a profound impact on the gift of sight today and for generations to come.

For information we invite you to our interactive estate-planning website at: discoveryeye.mylegacygift.org/

Save Your Vision Month is here.

We at DEF remind you to prioritize your eyes in 2024

In honor of Save Your Vision Month, here are some everyday things you can control to help “Save Your Vision”.

Enjoy a cup of tea –Green tea contains antioxidants, like vitamins C and E, lutein, and zeaxanthin that help protect against AMD and cataracts. It is it hydrating, helping you produce tears.

Take time to blink – On an average you blink about 15 – 20 times a minute. However, that rate drops by half when viewing text on a screen. Try using the 20/20/20 rule when staring at a screen: Every 20 minutes, look 20 feet away for 20 seconds so you can blink naturally and give your eyes time to relax.

Wear sunglasses and a hat – Exposure to ultraviolet (UV) rays can deteriorate vision over time and can lead to cataracts and possibly age-related macular degeneration (AMD). The American Optometric Association recommends sunglasses that block at least 99 percent of UVA and UVB radiation and that screen out 75 – 90% of visible light. And if you plan to spend a lot of time outdoors, it’s a good idea to get sunglasses with lenses that are polarized, which means that they’ve been treated to reduce glare. We suggest wearing a large brimmed hat to further protect your eyes.

Increase the seafood in your diet – Omega-3 fatty acids have been shown to bolster heart and brain health, as well as decrease your risk of eye disease. Studies show consuming omega-3 fatty acids, whether in foods you eat or in a supplement. It may help reduce your risk of developing macular degeneration. Research also shows not only can omega-3 fatty acids help reduce your risk of developing dry eyes, but it may also help treat bothersome symptoms as well.

Eat a rainbow – Eating a full rainbow of fruits and vegetables regularly helps give your body the nutrients it needs. In addition to fiber, vitamins and minerals, naturally colored foods contain what are known as phytochemicals, which are disease-fighting substances that also give fruits and vegetable their array of colors. Star nutrients are lutein and zeaxanthin—pigments found in such foods as dark, leafy greens, broccoli, zucchini, peas, and Brussels sprouts. Also important are antioxidants found in red foods such as strawberries, cherries, red peppers and raspberries, orange foods have beta-carotene and include carrots, pumpkins, sweet potatoes and yams.

Use digital screens at a safe distance – The brightness and glare from computers, tablets, smartphones and televisions can lead to eyestrain after prolonged use. Recent studies have also shown ill-effects from the UV rays from these devices. Symptoms can include headaches, blurred vision, dry or red eyes and difficulty refocusing. Experts recommend keeping the computer screen at least an arm’s length away and that you hold a handheld device at least 16 inches from your eyes.

Contact lens solutions serve a purpose –The most harmful but common problem is moistening contacts with saliva instead of saline solution. Proper contact lens care is important for keeping and free from infection.

Make-up makeover – Replace tubes of mascara after three months, as it is a breeding ground for bacteria. Sharpen liner pencils regularly and while it is okay to line the base of your lashes, using the liner inside the lash line can block oil glands. Replace eye shadows yearly and don’t share your eye cosmetics.

Use protective goggles – According to studies nearly half of eye injuries happen at home. These injuries occur when protective eyewear is not used or when the incorrect protective eyewear is used and an exposure occurs from around or under the protective eye equipment. Sports activities are another cause of eye injuries, from contact sports to sports that use balls that could catch you unaware. When snowboarding or skiing remember to protect your eyes from the sun and wind with tinted goggles that have UV protection.

Have a yearly eye exam – Even if you don’t wear corrective lenses, adults should get a comprehensive eye exam (which includes dilating your pupils with drops) by age 40. After that a yearly eye exam is recommended to keep your eyes healthy and catch any changes in your eyes that may be indicators of eye disease. If you have a family history of glaucoma or age-related macular degeneration, or you have diabetes, you are at a higher risk for vision-related issues and your doctor may elect to see you more often. If you have symptoms such as persistent pain inside or behind your eyes, redness, or gradual loss of vision, make an appointment with your doctor immediately.

Blue Light: What Is It And How Does It Affect Your Eyes?

What Is Blue Light?

Blue light, also known as high-energy visible (HEV) light, is a color in the visible light spectrum that can be seen by human eyes. These wavelengths of visible and non-visible light are measured in nanometers (nm), and, in general, the shorter the wavelength, the higher the energy. Blue light is a short wavelength, which means it produces higher amounts of energy.

Unlike other forms of light, the eyes cannot effectively filter blue light, so more can pass through the eye to the retina. Blue light produces both benefits and concerns for our eyes and overall health.

Where Are You Exposed To Blue Light?

The largest source of blue light is sunlight. In addition, there are many other sources:

Fluorescent light
Fluorescent light bulbs
LED light
Flat screen LED televisions
Computer monitors, smart phones, and tablet screens

Blue light exposure you receive from screens is small compared to the amount of exposure from the sun. And yet, there is concern over the long-term effects of screen exposure because of the close proximity of the screens and the length of time spent looking at them. According to an NEI-funded study, children’s eyes absorb more blue light than adults from digital device screens.

Benefits of Blue Light?

Moderate amounts of blue light are essential for good health.

Promotes alertness
Boosts memory and cognitive function
Elevates mood
Regulates circadian rhythm

Blue Light and Digital Eyestrain

Using digital devices up close or for long periods can lead to digital eyestrain.

Research has shown that when people use computers, laptops, and other digital devices, they tend to blink less often than normal. Fewer blinks can mean less moisture.

Digital eyestrain means different things to different people, but is generally related to the focusing system of the eyes.

When your eyes are strained from staring at a blue-light-emitting screen, you might notice:

dry eyes
sore or irritated eyes
tired eyes
headaches
facial muscles fatigued by squinting

Blue light scatters more easily than most other visible light. This may make it difficult for your eye to focus when receiving blue light. Instead, your eye may digest blue light as poorly focused visual static. This reduction in contrast may make it more difficult for your eye to process blue light, potentially contributing to eyestrain.

Still, there isn’t enough evidence to confirm that blue light directly leads to eyestrain. More high-quality studies are needed.

How to Limit Blue Light Exposure

The American Academy of Ophthalmology (AAO) recommends that you take the steps below to reduce digital eyestrain.

1. Practice the 20/20/20 strategy

While you’re using a device that emits blue light, stop every 20 minutes to focus on objects that are around 20 feet away. Study those objects for 20 seconds before you return to your up-close viewing.
Keep your eyes moist
Eye drops, such as artificial tears, and room humidifiers are all good ways to keep your eyes from becoming too dry and irritated while you’re using blue-light-emitting devices.

2. Use eyeglasses with the right prescription

Squinting at screens for long periods isn’t recommended for the overall health of your eyes. If you wear prescription eyeglasses to correct your vision, make sure you’re wearing a prescription intended for the distance between your eyes and your screen — ideally an arm’s length away. Most glasses are formulated for longer distances.

3. Adjust the blue light on your screen

To lower the risk of eyestrain and sleep disturbance, you may want to set your screens to a “night shift” setting with warmer tones. You can also purchase blue-light-filtering screens to slip over your computer screen when you’re working at night. The filter could cut the glare of your screen.

And a 2020 research study shows that they block 30 to 60 percent of blue light, though it isn’t clear whether blocking the blue will help preserve the sleep-wake cycle for those who use backlit screens before bedtime.

A Thanksgiving Spread that Promotes Eye Health

Thanksgiving is almost here; a meal that nourishes the family bonds and traditions. It’s the one time of the year where you can guarantee your eyes will be bigger than your stomach. This meal also has another added bonus — almost every item on the Thanksgiving table is healthy for your eyesight!

Here are several of the most popular Thanksgiving dishes and their corresponding benefits to your eye health:

Turkey –

No Thanksgiving is complete without a turkey, roasted golden brown and stuffed with fresh vegetables and herbs. Turkey is loaded with zinc and B-vitamin niacin, which helps prevent the formation of cataracts. Cataracts are the leading cause of vision loss in the United States, so gobble up! You are “preventing” cataracts with every bite.

Spinach, Green Bean Casserole, Asparagus and Brussel Sprouts –

These foods and other leafy greens are loaded with lutein and zeaxanthin, two nutrients that protect the retina, which may also help reduce the risk of cataracts and macular degeneration. Healthy Green Bean Casserole Recipe

Sweet Potatoes –

Sweet potatoes are full of Beta-carotene, which is a carotenoid and antioxidant that promotes night vision and overall good eyesight. Sweet potatoes are also loaded with vitamins C and E. Diets that are rich in these vitamins can help prevent or delay the development of cataracts and macular degeneration. Mashed Sweet Potatoes Recipe

Cranberry Sauce –

Cranberries contain bioflavonoids, a large class of antioxidants. Bioflavonoids are found in the pulp, skin and rinds of foods that contain vitamin C. Both flavonoids and vitamin C help protect the eyes from free radical damage caused by pollution and the body’s normal metabolic processes.

Pumpkin Pie –

Pumpkin is one of the best sources of vitamin A, so pumpkin pie is an eye-healthy dessert. In fact, one cup of cooked, mashed pumpkin contains more than 200 percent of the recommended daily intake of Vitamin A. Vitamin A provides nourishment and protection to the eye’s lens, cornea and macula (part of the retina), so it improves night vision.

A diet that’s full of the right nutrients is a great start to keeping your eyes healthy, but don’t forget that regular eye exams are equally important! We hope you enjoy a happy and delicious Thanksgiving with family and friends.

*For more eye healthy recipes click here EYE COOK

BACK-TO-SCHOOL EYE CARE FOR KIDS: WHAT YOU NEED TO KNOW

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It’s back-to-school time! As your child prepares to start another school year, don’t forget to take care of one of their most important learning tools — their eyes. Find out how you can help keep their eyes healthy, and why an eye exam is so important.

Be aware of vision problems:

Your kid may be spending more time in front of the screen than usual — and that could put him or her at increased risk for certain vision problems or eye conditions.

Nearsightedness: If your child is not already nearsighted, doing a lot of “close work” (using a screen or even in a book) can increase their likelihood of developing this condition. Encourage them to hold books or screens at least 18 inches away.
Dry Eye Syndrome: When we stare at a screen all day, our blink rate decreases significantly. The blinking action secretes an oil called meibum (one of the three layers of tear film), which keeps our eyes moist. When we don’t blink as much, our eyes can become overly dry and irritated.
Eye Strain and Fatigue: Excessive screen time can also lead to strain, fatigue, blurry vision, itchy eyes, and headaches.

Watch for behavioral changes that may signal vision trouble, for example:

Talk to your child about their new classroom or where they’re sitting to gauge whether they’re having issues seeing.
Ask them whether their eyes ever feel tired after watching something on a screen.
Watch for blinking, squinting and tearing of their eyes.
Pay attention to headaches or fatigue.

Help minimize any risk to your child’s eyes by doing the following:

Make sure they take frequent screen breaks. Instead of focusing directly on the screen, encourage your child to look around the room every now and then, or take some time to stare out the window (at least 20 seconds is recommended by the American Optometric Association). You can even remind them to blink.
Position the monitor or screen so it’s about 25 inches away, and also position it so their gaze is slightly downward.
Adjust the room lighting so that the screen isn’t brighter than the surrounding light. If it is, your child’s eyes will have to work harder.
Sharpen your child’s vision skills with “traditional” non-screen-based activities, like puzzles, blocks, drawing and painting, and playing catch.

Don’t Forget the Eye Exam

It’s easy for us to forget about our eyes let alone our child’s, but it is very important to get your child’s eyes checked regularly.

It is absolutely critical to ensure healthy eye development and that they have the visual skills necessary for successful learning. No matter where your child will be participating in school this year — don’t skip the trip to the eye doctor.

The American Optometric Association recommends children have an eye exam by the time they reach one year old, at least once between 3 and 5 years old, and once a year after first grade until they graduate. Your eye doctor can recommend the best frequency for your child.

Your child should still receive a comprehensive eye exam, whether or not they have received a vision screening at school or even at their pediatrician’s office. While vision screenings can indicate some vision trouble, they often only test your child’s ability to see things that are far away, such as a classroom whiteboard. Also, keep in mind the school screeners usually do not have all the necessary equipment or training to detect many eye health problems in children.

A comprehensive eye examination looks at complete eye health, and includes tests for the following, in addition to an understanding of patient and family health history:

Visual acuity
Depth perception
Color vision
Peripheral vision
Refractive errors (like nearsightedness, farsightedness and astigmatism)
Eye focusing, tracking, teaming and other eye movement abilities

Specialists state that 80% of what your children learn in school is taught visually. Untreated vision troubles can put children at a substantial disadvantage. Be certain to arrange that your child has a complete eye exam before school starts.

5 Most Common Eye Problems

Most people have eye problems at one time or another. Some are minor and will go away on their own, or are easy to treat at home. Others need a specialist’s care. Some eye issues come with age while others may be a serious condition.

If you’ve never had a problem with your eyes it can be easy to forget how important it is to take care of them. The good news is that it’s never too late to start taking care of your eye health. Regular eye health appointments and eye exams can lead to early diagnosis. This is key to correcting or slowing most eye conditions. Always see your eye care professional if your vision problem lasts for more than a few days or worsens.

The five most common eye conditions leading to loss of vision or blindness are:

Dry Eye
Cataracts
Diabetic retinopathy
Glaucoma
Age-related macular degeneration

Dry Eye

Dry eye is a common condition that occurs when your tears aren’t able to provide adequate lubrication for your eyes. Tears can be inadequate for many reasons. For example, dry eyes may occur if you don’t produce enough tears or if you produce poor-quality tears. Dry eyes can also feel very uncomfortable.

Signs and symptoms, which usually affect both eyes, may include:

A stinging, burning or scratchy sensation in your eyes
Stringy mucus in or around your eyes
Sensitivity to light
Eye redness
A sensation of having something in your eyes
Difficulty wearing contact lenses
Difficulty with nighttime driving
Watery eyes, which is the body’s response to the irritation of dry eyes
Blurred vision or eye fatigue

Cataracts

A cataract is a clouding of the lens in the eye that typically will affect your vision. Most cataracts are related to aging. People who have cataracts often have other vision problems in one or both eyes that accompany the cataract, such as nearsightedness (myopia), farsightedness (hyperopia), astigmatism (blurred vision), and/or presbyopia (reading problems).

The lens lies behind the iris and the pupil. It works much like a camera lens. It focuses light onto the retina at the back of the eye, where an image is recorded and sent to the brain. The lens also adjusts the eye’s focus, letting us see things clearly both up close and far away. The lens is made of mostly water and protein. The protein is arranged in a precise way that normally keeps the lens clear and lets light pass through it.

But as we age, some of the protein may clump together and start to cloud the lens. This is a cataract. Over time, the cataract may grow larger or more dense making it harder to see. There are no known medications or diets to prevent age-related cataract so currently the only treatment is cataract surgery. Consult an ophthalmologist for a cataract surgery evaluation.

Diabetic Retinopathy

Diabetic retinopathy is the most common diabetic eye disease and a leading cause of blindness in American adults caused by changes in the blood vessels of the retina.

We know that:

Currently more than 4 million Americans aged 40 and older have some form of diabetic retinopathy
There is a higher prevalence in African Americans, Hispanics/Latinos, American Indians, and Alaska Natives aged 20 and older
Preventive measures help and it is highly treatable.

In some people with diabetic retinopathy, blood vessels may swell and leak fluid or blood inside the eye. In other people, abnormal new blood vessels grow on the surface of the retina. The retina is the light-sensitive tissue at the back of the eye. A healthy retina is necessary for good vision.

Two important tips for diabetic retinopathy prevention: 1) Diabetic retinopathy is worse in patients with poor blood sugar control, so follow your diet and medication prescriptions carefully. 2) Get a dilated eye exam from your ophthalmologist every year for early diagnosis and treatment.

Glaucoma

Glaucoma is a disease that causes damage to the major nerve of the eye called the optic nerve, a part of the central nervous system that carries visual information from the eye to the brain.

The eye experiences a gradual increase of intraocular pressure (IOP) due to an imbalance of the fluid produced in the eye and the amount of fluid drained. Over time, elevated IOP can cause vision loss. The most common form of glaucoma is primary open angle glaucoma which affects about 3 million Americans. However, there are other types including narrow angle, congenital, normal tension, and secondary glaucoma.

At age 50 about 2% of the US population has glaucoma, increasing to 4% by age 70 and 10% for those over age 80. While anyone can develop glaucoma, there are some risk factors that increase the likelihood of having this disease, which include:

A family history of glaucoma
Mexican American heritage over the age of 60
African American heritage over age 40.

Often people with glaucoma are unaware they have the disease because there are no symptoms, so it is recommended that you have a dilated eye exam every two years. With early diagnosis there are treatments that can often protect against irreversible damage to the optic nerve that can lead to serious vision loss. Glaucoma can be treated with eye medications, lasers, and various surgical procedures. However, if glaucoma is not controlled can cause debilitating loss of vision.

Age-Related Macular Degeneration

Age-Related Macular degeneration (AMD) is a progressive eye condition affecting as many as 15 million Americans. The disease attacks the macula of the eye, where our sharpest central vision occurs, affecting reading, driving, identifying faces, watching television, safely navigating stairs and performing other daily tasks. Although it rarely results in complete blindness, it robs the individual of all but the outermost, peripheral vision, leaving only dim images or black holes at the center of vision.

As the disease progresses color vision and central vision sharpness deteriorates. the gradual destruction of light sensitive cells continues until large areas are totally gone. Peripheral vision remains, but the ability to clearly see straight ahead and to see color is lost.

For many people, the first sign of macular degeneration is something they notice themselves. Straight lines like doorways or telephone wires may appear wavy or disconnected. When you look at a person, their face may be blurred while the rest of them is in focus. Lines of print may be blurred in the center or the lines may be crooked. For some people, there is a sudden blurring or loss of sight in the center of vision. For any sudden change in vision, you should contact your ophthalmologist immediately.

AMD can be classified into Early AMD and Late AMD. In Early AMD, a patient may have drusen, which are small protein/lipid deposits underneath the retina, and they can still have good vision. In Late AMD, there are two common forms that occur—wet (neovascular AMD) and dry (atrophic AMD). The wet AMD has abnormal blood vessels beneath the retina that leak blood which can greatly distort the vision and cause a central blind spot. Approximately 10-15% of patients have the wet form. Fortunately, there are treatments for wet AMD. To date, the dry, atrophic form of AMD does not have any treatments available. In dry AMD, the retinal pigment epithelial (RPE) cells, which are the posterior-most layer of cells in the retina, undergo extensive degeneration that causes the overlying retina to lose function. We do not know what causes the RPE cells to become unhealthy and start to die. Many research laboratories worldwide are studying the causes of dry AMD and how to treat it.

Help keep your eyes healthy for years to come with regular eye exams, and treatment at the first sign of a problem.

Spring Allergies and Your Eyes

As winter shifts to spring, and flowers, grasses and trees begin to bloom, spring can take a toll on your eyes if you suffer from seasonal allergies. The spring season has a marked an increase in pollen and allergens in the air, that leave you with congestion, headaches, and itchy, swollen eyes, known as eye allergies.

According to the American Academy of Ophthalmology, eye allergies are also called allergic conjunctivitis, and are pretty common. They occur when the eyes react to something that irritates them (called an allergen). The eyes produce a substance called histamine to fight off the allergen. As a result, the eyelids and conjunctiva become red, swollen, and itchy. The eyes can tear and burn. Unlike other kinds of conjunctivitis, eye allergies do not spread from person to person.

What Are the Symptoms of Eye Allergies?

The most common eye allergy symptoms include:

red, swollen, or itchy eyes
burning or tearing of the eyes
sensitivity to light

What are Eye Allergy Triggers?

Outdoor allergens, such as pollen from grass, trees, and ragweed
Indoor allergens, such as dust mites, pet dander, and mold
Irritants, such as cigarette smoke, perfume

Spring Allergy Management

To combat seasonal eye allergies, you must have a dual focus on both prevention and treatment for symptoms. By making some minor changes to your environment and activities, you can significantly reduce the amount of allergens you come in contact with, and lessen the symptoms you’re experiencing. Use these seven methods to soothe your eye irritations related to allergies.

Avoid Allergens

The best strategy to minimize your eye discomfort during the spring is to limit your exposure to allergens. As winter comes to an end, create an actionable plan that helps you avoid seasonal allergens like pollen.

Steps you take may include:

- Changing your HVAC filters before turning on your cooling system for the first time
- Purchase and use an in-house air purifier
- Checking pollen levels online as part of your daily routine
- Cleaning your home more frequently
- Keeping your windows closed
- Spring cleaning before the weather actually warms up

These preventative measures are an important first step to good eye health during allergy season.

Don’t Wear Contacts

If you are prone to allergy-related eye irritation, stop wearing your contacts for the first month or so of spring weather. While contacts do not cause allergy symptoms, they can aggravate any symptoms that do appear.

You may want to schedule an eye exam, to prepare for switching to full-time glasses use. This exam presents a good opportunity for you to check that your glasses prescription is current and to make any necessary updates to maintain your comfort and vision quality.

Rinse with Sterile Non-Preserved Saline

Eye allergies can cause changes in tear production. Many individuals experience eye dryness or excess tears due to allergies. In some cases, your eyes may water frequently but still feel dry due to allergens.

Much of this type of irritation occurs when airborne allergens come into contact with the surface of the eyeball. To minimize your allergen exposure, rinse your eyes with saline solution. This may reduce the urge to rub your eyes, which is important because rubbing can trigger a release of more histamines and cause redness, swelling, and blood vessel breakage.

Use Non-Preserved Artificial Tear Drops or Medicated Eye Drops

You may also want to use non-preserved artificial tears to help maintain correct eye lubrication. Before you begin a new eye health regimen, consult with your optometrist to determine which brand and formula is best for your symptoms.

In addition to sterile rinses or lubricant eye drops, using medicated eye drops may help relieve some of the discomfort associated with seasonal eye allergies. Decongestant or antihistamine drops can control redness, itchiness, and other symptoms.

Try Cold Therapy

Many individuals notice redness, tenderness, and swelling in the eye area when suffering from allergies. Applying cool or cold compresses can provide immediate soothing relief for these symptoms, including improving the appearance of the skin around the eyes.

Use a clean soft cloth or compress designed for use in the eye area. These compresses are gentler than traditional cold therapy tools and are safer for your eyes. Soak the compress in cool water, wring it out, and place over the eyes. You can refresh the compress with water when the cloth no longer feels cold. To address more intense symptoms, wet your compress, wring out the cloth, and put it in the refrigerator for 10 to 15 minutes. This colder compress will last longer and provide relief for more advanced symptoms.

Wash Your Hands and Face Frequently

As mentioned above, many eye allergy symptoms come from allergens landing on the eye. In addition to floating airborne allergens, your eyes could also suffer from contact with allergens that are transferred in on your skin or hair.

Wash your hands more frequently during allergy season. You should also wash your face twice a day and rinse the area around your eyes as needed. These steps reduce the concentration of allergens on your skin. You may also want to pin back any hair that may cover your face at eye height to minimize your allergen exposure.

Wear Sunglasses

When you do need to be outside, wear glasses to protect the surface of your eyes from direct contact with allergens. You may prefer to wear sunglasses rather than your usual glasses because most sunglasses have larger lenses than everyday eyeglasses and, therefore, provide more protection.

If you need constant vision correction, but want the benefits of wearing sunglasses, talk to your eye doctor about investing in a pair of high-quality prescription sunglasses.

Consult Your Eye Care Professional

If your symptoms continue, consult your eye care professional for help with diagnosis and treatment. There are many prescription medications, not available over the counter, to help control severe allergic symptoms.

If your allergies cause vision changes, feelings of a foreign object in your eye, or acute pain, make an appointment as soon as possible.

February is AMD/Low Vision Awareness Month

Low vision affects millions of Americans — including many older adults. People with low vision aren’t blind, but because of their vision loss, they may not be able to do everyday tasks like driving or reading even with glasses.

What is Low Vision?

When your eyesight is impaired to the degree that you struggle with daily tasks like reading or cooking – or that you have difficulty recognizing faces, you may have a medical condition referred to as low vision. Someone with low vision can’t simply put on a pair of glasses or contacts and see well; this condition is beyond the typical loss of vision that occurs with aging.

Individuals experiencing low vision can struggle with maintaining independence; hobbies, reading and even socializing may become challenging as vision loss progresses. Because of the impact low vision can have on your life, it is important to have your eyes checked by a low vision specialist if you have any concerns. Since it is unusual to be able to restore vision once it is lost, screenings can help preserve the vision you have and help you access adaptive lenses and devices if you need them. While there is not a cure for low vision, a low vision specialist can help you adapt and if needed, create a vision rehabilitation program designed to meet your specific needs.

If you are experiencing trouble seeing even with prescription eye glasses, ask your optometrist or ophthalmologist for a low vision evaluation. If your practitioner does not perform this evaluation, request a referral to a low vision specialist in a private practice, at a Braille Institute or a University Eye Care Institute.

Low vision is often caused by one of these conditions:

Age-related macular degeneration (AMD) –AMD is a progressive eye condition affecting as many as 15 million Americans. The disease attacks the macula of the eye, where our sharpest central vision occurs, affecting reading, driving, identifying faces, watching television, safely navigating stairs and performing other daily tasks. Although it rarely results in complete blindness, it robs the individual of all but the outermost, peripheral vision, leaving only dim images or black holes at the center of vision. Read more

Diabetes– Diabetic retinopathy is the most common diabetic eye disease and a leading cause of blindness in American adults caused by changes in the blood vessels of the retina.

Glaucoma– Glaucoma is a disease that causes damage to the major nerve of the eye called the optic nerve, a part of the central nervous system that carries visual information from the eye to the brain

Reducing your risk for Low Vision

Practicing healthy daily lifestyle habits can reduce your risk for low vision. A healthy diet, not smoking and maintaining healthy blood pressure are important first steps. Other healthy habits that can lower the risk include:

Eat a diet with plenty of green, leafy vegetables such as kale, spinach, and collard greens, and fresh fruit.
Fish that is high in omega-3 fatty acids is good for eye health. Try to include it in your diet at least once or twice a week. Types of fish that are high in omega-3 fatty acids include salmon, sardines, mackerel, herring, and albacore tuna.
It’s important to keep your body healthy. Maintain a healthy weight, exercise regularly, maintain healthy blood pressure and cholesterol levels. The healthier your body, the more it can foster good eye health. Visit our website for eye healthy recipes Eye Cook.
Protect your eyes. Wear sunglasses and a hat with a visor in bright sunlight to protect your eyes from potentially harmful ultra-violet (UV) light and blue light.

Low Vision Reading Apps on Your Smartphone

Reading often is one of the most difficult challenges for visually impaired people. Many people with low vision give up reading altogether, because what used to be an enjoyable, effortless activity now requires thought, preparation and a lot of adjustment. In short, reading is just no fun anymore.

The American Academy of Ophthalmology (AAO) has listed some of the top apps, devices and resources for people with low vision, below are a few listed for reading app, for more apps visit American Academy of Ophthalmology.

Reading

KNFB Reader (Android and iOS, $99.99) – This voice-to-text tool lets you take a picture of any text—books, recipes, product labels—and have it read back to you or converted to braille.
Audible (Android and iOS, $14.95 per month plus downloads) – Provides downloadable audiobooks, periodicals, newspapers and more. Their collection currently includes 200,000+ books.
Kindle app (Android, iOS, PC and Mac, free) – An e-reader app that allows you to download books. Books can be purchased and directly downloaded from Amazon, or downloaded from your library app into the Kindle app. The free Kindle app can be downloaded onto many iOS and Android devices.
Bookshare (Android and iOS, $50 per year) – An online library for people with low vision. Currently, the Bookshare collection contains nearly 850,000 titles, downloadable in a choice of formats including ebooks, audio, braille, and large font. Membership requires verification of your print disability, and includes free downloads.
BARD Mobile (Android and iOS, free) – A talking book library that offers access to tens of thousands of titles. You must first enroll in the National Library Service (NLS) for the Blind and Print Disabled at the Library of Congress. Note that this program may only be available in the United States.

Regular eye exams are essential for all adults; it is recommended that adults over the age of 60 have eye exams each year. If your vision can not be improved to the point that you are able to see the things you need to see or read, your eye care professional can refer you to a low vision specialist. This specialist differs from a conventional optometrist and is trained to evaluate your low vision problem and offer solutions to help you retain or regain independence and the ability to do things you enjoy again.

More Low Vision resources

You Can Teach an Old Drug New Tricks

Previously Approved Drug Shows Promise for Dry Age-Related Macular Degeneration (AMD)

Getting FDA approval for new treatments can take years or even decades. But what about repurposing drugs that have already been approved for other diseases? That’s precisely the question DEF-supported researchers are asking about a new treatment for dry age-related macular degeneration (AMD) and other aging diseases, including Alzheimer’s and Parkinson’s.

Six years ago, DEF Research Director Dr. Cristina Kenney began collaborating with Parkinson’s specialist Dr. Howard Federoff of the Department of Neurology at UC Irvine. DEF-supported researchers had previously shown that damaged mitochondria are a significant factor in accelerating cell death in AMD, and Kenney developed a cybrid mitochondria model to study AMD. Federoff had set up a screening system to look at drugs previously approved by the FDA that might improve the health of mitochondria, whose demise also contribute to Parkinson’s and Alzheimer’s. Of more than a thousand drugs screened, he identified 13 that could rejuvenate mitochondria. Kenney’s cell-culture models and Federoff’s system were a match made in research heaven.

Together, the researchers homed in on one drug, which Federoff named PU-91, because it was the 91st drug he’d tested. “When we added PU-91 to our AMD cybrids, the cells lived longer, they functioned better the damage to the mitochondria was decreased and it really improved the health of the mitochondria,” Kenney says. “PU-91 is a drug called fenofibrate, which has been used for years to treat high cholesterol. When this drug is modified slightly, it helps sluggish mitochondria regain their health. We’re taking a drug that has been used for many years with FDA approval, and we’re repurposing it for a new target and new types of diseases.”

Benefits of Repurposing

Tremendous savings of time and money are to be had by repurposing a known drug rather than starting with a drug people have never used before. Perhaps most importantly, because it’s been used for so many years in patients, the known drug has a proven safety track record. PU-91 has an additional advantage in that it is taken orally. While there is currently one type of treatment for wet AMD — an injection — there is no treatment at all for the dry form of AMD. An oral treatment for dry AMD is a game-changer.

The research is going so well that a company has been formed specifically to bring this drug to market for dry AMD. “As we become more successful, this type of drug can also be used for neurodegenerative diseases that have damaged mitochondria, such as Parkinson’s disease and Alzheimer’s disease,” Kenney says. “Potentially, it might even be used for something, such as glaucoma, that causes cell death of the retina ganglion cells in the eye. There are a lot of potential uses for it.”

Bench to Bedside

DEF currently is supporting ongoing studies to optimize PU-91’s formulations for maximum effectiveness in patients with AMD. “It’s exciting, because this is the goal for translational researchers,” Kenney says. “Take what you’re doing at the bench and bring it to the bedside.”

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Beware of Costume Contacts this Halloween

Costume Contact Lenses such as cat eyes or zombie may make your Halloween costume a bit more frightful although wearing those lenses without a prescription can be more terrifying, as it could result in vision loss or even blindness.

You can buy contact lenses, including decorative contact lenses, from your eye doctor or on the Internet. It’s very important that you only buy contact lenses from a company that sells FDA-cleared or approved contact lenses and requires you to provide a prescription. Even if you don’t wear corrective lenses you still need to get fitted properly.

Remember — Buying contact lenses without a prescription is dangerous!

Right now there are a lot of products that you can buy without a prescription but they may not be safe or legal.

You should NEVER buy lenses from:

street vendors
salons or beauty supply stores
boutiques
flea markets
novelty stores
Halloween stores
convenience stores
beach shops
internet sites that do not require a prescription

Know the Risks –

Wearing costume contact lenses can be risky, just like the contact lenses that correct your vision. Wearing any kind of contact lenses, including costume lenses, can cause serious damage to your eyes if the lenses are obtained without a prescription or not used correctly.

These risks include:

A cut or scratch on the top layer of your eyeball (Corneal Abrasion)
Allergic reactions like itchy, watery red eyes
Decreased vision
Infection
Blindness

Signs of possible eye infection:

Redness
Pain in the eye(s) that doesn’t go away after a short period of time
Decreased vision

If you have any of these signs, you need to see a licensed eye doctor (optometrist or ophthalmologist) right away! An eye infection could become serious and cause you to become blind if it is not treated.

This Halloween season DEF wants to remind you of the importance of eye safety and to make sure to take the proper steps in ensuring the proper contact lenses.

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