How Nutrition Shapes the Health of Your Eyes

When we think about healthy eating, we usually picture stronger muscles, better digestion, or sharper memory.  But your eyes? They’re often left out of the conversation — even though they depend on nutrients just as much as the rest of your body.

Your eyes are some of the most energy-demanding organs you have.  Every blink, every moment of focus, every shift from screen to sunlight depends on a steady supply of vitamins, minerals, and antioxidants. The right foods can help sharpen your vision today and protect against age-related problems in the future.

Let’s dive into the fascinating connection between nutrition and your eyes, and explore what you can eat to keep your vision clear and your eyes comfortable.

Vitamin A: The Classic Eye Health Nutrient

Vitamin A is famous for a reason. It helps create a pigment in the retina that allows you to see in low light. Without enough of it, night driving might get tricky — or you may even experience night blindness.

Vitamin A also supports:

  • A healthy surface of the eye (the cornea)
  • Moisture production to prevent dry eye
  • Immune defenses that protect the eyes from infection

Top sources: Sweet potatoes, carrots, spinach, kale, cantaloupe, eggs, and dairy.

 

Lutein & Zeaxanthin: Natural Blue-Light Filters

These two antioxidants are like sunglasses built right into your eyes. They gather in the macula — the part of the retina responsible for sharp central vision — and absorb harmful blue light from the sun and digital screens.

Why they matter:

  • Reduce risk of age-related macular degeneration (AMD)
  • Lower risk of cataracts
  • Support visual performance in bright light

Where to find them: Dark leafy greens (spinach, kale, collards), broccoli, peas, and egg yolks.

 

Omega-3 Fatty Acids: Moisturizing from the Inside Out

If your eyes often feel gritty, tired, or irritated, omega-3s may help. These healthy fats support the oily layer of your tears, keeping them from evaporating too fast — a major cause of dry eye.  Omega-3s also play a structural role in the retina and have anti-inflammatory benefits.

Good sources: Salmon, sardines, mackerel, anchovies, chia seeds, flaxseeds, and walnuts.

 

Vitamins C & E: Antioxidants for Long-Term Protection

Your eyes are exposed daily to oxygen, sunlight, and environmental stress — all of which create free radicals that can damage delicate tissues. Vitamins C and E act as antioxidants, neutralizing these free radicals and protecting your lenses and retinas.

They may help reduce the risk of:

  • Cataracts
  • Age-related eye damage

Get more from:

  • Vitamin C: citrus, strawberries, bell peppers, tomatoes
  • Vitamin E: almonds, sunflower seeds, avocados, plant oils

 

Zinc: The Vision Support Mineral

Zinc helps your body absorb and move vitamin A to the retina, where it’s needed for vision. It also supports enzymes that defend the eyes against oxidative stress.

Sources: Pumpkin seeds, lentils, chickpeas, beef, poultry, and whole grains.

 

The Best Eating Pattern for Healthy Eyes

While individual nutrients matter, your overall diet has the biggest influence. Research shows that a Mediterranean-style diet — rich in plants, healthy fats, and whole foods — is especially protective.

Build an eye-friendly plate with:

  • Leafy greens
  • Colorful vegetables
  • Fatty fish
  • Beans and legumes
  • Nuts and seeds
  • Whole grains
  • Olive oil
  • Limited processed foods and sugars

This pattern fights inflammation, supports blood vessel health, and provides a steady supply of eye-protective nutrients.

 

What About Supplements?

Supplements aren’t a replacement for food, but they can help in certain cases — particularly for people with intermediate macular degeneration, where the AREDS2 formula has been proven to slow disease progression.

For others, supplements may help if your diet lacks specific nutrients like omega-3s, B12 (for vegans), or lutein.

Always check with an eye doctor before starting an eye-health supplement routine.

 

The Bottom Line

Your eyes are an extension of your overall health — and they thrive on the nutrients you feed them. Whether you want to ease dry eye, sharpen your daily vision, or protect against age-related changes, your plate is one of your most powerful tools.

A balanced, colorful diet nourishes your vision from the inside out. What you eat today truly can shape how you see tomorrow.

Visit our website page: EyeCook for recipes that are rich with vitamins and nutrients for better vision and health!

Dry Eye vs. Allergies: How to Tell the Difference

Itchy, watery, red eyes can make anyone miserable. But are your symptoms from dry eye or allergies? While the two conditions often feel similar, they have very different causes and treatments. Knowing the difference can help you get the right relief.

What Is Dry Eye?

Dry eye happens when your eyes don’t produce enough tears, or when the tears evaporate too quickly. Healthy tears keep the surface of the eye smooth, nourished, and protected. When this system doesn’t work properly, you may notice:

  • Burning or stinging sensation
  • Grittiness (like sand in the eye)
  • Blurred vision that clears with blinking
  • Redness
  • Discomfort that worsens later in the day or after screen time
  • Dry eye is often related to aging, contact lens use, certain medications, medical conditions, or spending lots of time staring at digital screens. 

What Are Eye Allergies?

Eye allergies—also called allergic conjunctivitis—occur when your eyes react to allergens like pollen, dust, pet dander, or mold. Your immune system triggers a histamine response, leading to inflammation and classic allergy symptoms such as:

  • Itching eyes (the hallmark sign)
  • Red, watery eyes
  • Many times there is also nasal congestion and sneezing
  • Swelling around the eyelids
  • Stringy, clear discharge
  • Symptoms that flare up seasonally (like during spring or fall) or in specific environments
  • Unlike dry eye, allergies are immune-driven and often come with other allergy symptoms like sneezing or a runny nose.

Key Differences Between Dry Eye and Allergies

Symptom/Feature Dry Eye Allergies
Main Sensation Burning, stinging, gritty Itching
Tear Quality Too few or poor-quality tears Excess watery tears
Discharge Usually minimal, stringy mucus Clear, watery, or stringy discharge
Timing Worse at end of day, with screen use Flare-ups tied to allergen exposure
Other Symptoms Blurred vision, eye fatigue Sneezing, nasal congestion
Relief From Artificial tears, lifestyle changes Antihistamines, avoiding allergens

 

Can You Have Both?

Yes—some people experience both dry eye and allergies at the same time. For example, if your eyes are already dry, allergens may irritate them more. And some allergy medications (like oral antihistamines) can actually make dry eye worse by reducing tear production.

 

When to See an Eye Doctor

If you’re unsure whether your symptoms are from dry eye, allergies, or both, it’s best to consult an eye care professional. They can perform tests to measure tear production, check for inflammation, and help you find the right treatment plan.

 

Bottom Line

Both dry eye and allergies can make your eyes feel irritated, red, and watery—but the root causes are very different. Pay attention to whether you experience burning and dryness (more likely dry eye) or itching and watery discharge (more likely allergies). Correctly identifying the problem is the first step toward lasting relief.

Don’t Forget Your Eyes: UV Protection is Just as Important as Sunscreen

Summertime often means long hours spent outdoors—whether at the beach, hiking, barbecuing, or just soaking up the sunshine. Most of us know to apply sunscreen to protect our skin from harmful UV rays, but there’s one vital area we often overlook: Our Eyes.

Just like your skin, your eyes are vulnerable to the damaging effects of ultraviolet (UV) radiation. Prolonged exposure to UV rays can lead to serious eye health issues over time, including cataracts, macular degeneration, and even certain types of eye cancer.

UV radiation, whether from natural sunlight or indoor artificial rays, can damage the eye’s surface tissues as well as the cornea and lens.  Unfortunately, many people are unaware of the dangers UV light can pose. By wearing UV-blocking sunglasses, you can enjoy the summer safely while lowering your risk for potentially blinding eye diseases.

Here are a few of the eye conditions you can avoid by wearing sunglasses:

  • Cataracts and eye cancers can take years to develop. Each time you bask in the sun without eye protection, you increase your risk of serious disease. Babies and children need to wear hats and sunglasses for this very reason. People of all ages should take precautions whenever they are outdoors.
  • Growths on the eye, such as pterygium, can show up in our teens or 20s. Surfers, skiers, fishermen, farmers, and others who spend long hours under the midday sun or near rivers, oceans, and mountains are at risk.
  • Snow blindness can happen after exposure to UV reflections off of snow, ice, sand, or water.

The good news? Protecting your eyes is simple.

Here’s how you can safeguard your vision this summer and every season

Many sunglasses shoppers forget to check the UV rating before purchasing a pair. Be sure to select sunglasses that provide 100% UV or UV400 protection, or block both UV-A and UV-B rays.

Here are additional tips to protect your eyes from UV damage, no matter what the season: 

  • Wear a hat along with your sunglasses. Broad-brimmed hats are best.
  • Protect children and senior citizens with hats and sunglasses. Everyone is at risk for sun damage.
  • Know that clouds don’t block UV light. The sun’s rays can pass through haze and clouds.
  • Sunlight is strongest midday to early afternoon. It is also stronger at higher altitudes and when reflected off of water, ice, or snow.
  • Never look directly at the sun. Doing so at any time, including during an eclipse, can damage the eye’s retina and cause a serious injury known as solar retinopathy.
  • Avoid tanning beds. Tanning beds pose the same risks to your eyes and body as outdoor UV light.

Long-term eye health starts with small steps today. By embracing these simple guidelines, your eyes will thank you for years to come.

Support Sight-Saving Research by Donating to the Discovery Eye Foundation

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Smoking and Vision Loss

Smoking has long been known to cause heart disease and lung cancer; however many people do not realize that smoking can lead to serious loss of vision. Cigarette smoke contains thousands of chemicals that can damage many organs in our bodies, including our eyes. Over time, smoking can cause serious eye diseases that can cause permanent vision issues.

The following eye diseases can be made worse by smoking:

  • Age-related Macular Degeneration(AMD) – an eye disease that affects central vision. You need central vision to see objects clearly and for common tasks such as reading, recognizing faces, and driving.
  • Cataracts – cause blurry vision that progresses over time. Without surgery, cataracts can lead to serious vision loss. The best way to protect your sight from damage linked to smoking is to quit or never start smoking.
  • Glaucoma – causes a gradual breakdown of the cells that make up the optic nerve which sends visual information to your brain.. As the nerve cells die, vision is slowly lost, usually beginning with side vision. Often the loss of vision is not noticeable until a significant amount of nerve damage has occurred. This is why as many as half of all people with glaucoma may be unaware that they have the disease.
  • Diabetic Retinopathy – a common complication of diabetes. It affects the tiny blood vessels of the retina in the eye. Retinal blood vessels can break down, leak or become blocked and this can affect vision over time. In some people with diabetic retinopathy, serious damage to the eye can occur when new blood vessels grow on the surface of the retina.
  • Dry Eye Syndrome – is a condition where eyes do not produce enough tears and lubrication may result in more prominent blood vessels on the eye This can lead to eye irritation, burning, scratchy and painful eyes.

Symptoms of Eye Diseases Related to Smoking:

Age-related Macular Degeneration (AMD):

    • Loss of central vision needed to see details straight ahead.
    • Blurry or wavy areas in the central vision.
    • Difficulty recognizing faces.
    • Need for more light to read or perform other tasks.

Cataracts:

    • Cloudy or blurry vision.
    • Colors appearing faded or dull.
    • Sensitivity to light.
    • Trouble seeing at night.
    • Double vision.

Diabetic Retinopathy:

    • Blurry or distorted vision.
    • Dark or empty areas in vision.
    • Difficulty seeing colors.

Dry Eye Syndrome:

    • Scratchy, burning, or painful sensations.
    • Red eyes
    • Excessive tearing.
    • Blurry vision.

How Can You Protect Your Vision Related to Smoking?

The best way to protect your eyes is to QUIT SMOKING.  According to the National Eye Institute (NEI), quitting smoking lowers the risk of developing eye diseases. Your eyes can begin to recover and your overall health will improve.

Here are some tips to protect your eyes:

  • Eat Healthy Foods: Add leafy greens like spinach and kale to your meals. Fish high in omega-3 fatty acids, like salmon and tuna, are also good for your eyes.
  • Wear Sunglasses: Protect your eyes from the sun by wearing sunglasses. Look for sunglasses that block 99 to 100 percent of UVA and UVB rays. Sunglasses help even on cloudy days.
  • Get Regular Eye Exams: Schedule regular check-ups with an eye doctor. Early detection of eye problems can lower your risk of serious diseases. If eye diseases run in your family, early care is especially important.

If you smoke cigarettes and are concerned about your vision, consult with your health care provider about ways to quit smoking to help protect your eyes.  You can also find resources to help you on your journey to living a smoke-free life at Smokefree.gov.

June is Cataract Awareness Month

 

National Cataract Awareness Month is celebrated in June. The awareness campaign promotes information about the eye condition that is the leading cause of treatable vision loss in the U.S.?  Yes, this is a scary fact, but no need to be frightened because cataracts are treatable with an outpatient surgery.

Vision loss from cataract is caused by clouding on the lens of the eye. The lens of the eye is behind the colored iris and its dark center pupil. Cataract surgery removes the cloudy lens and replaces it with a crystal-clear artificial lens.  This common eye condition mostly affects people over 50 and the causes can range from simple aging, diabetes, long-term eye diseases, and eye injury/inflammation, to factors like hereditary influences, smoking, intake of certain oral steroids, and so forth.

 

Cataract Vision Simulator

Although there may be no early symptoms, patients may begin to notice:

  • cloudy or blurry vision
  • colors that look faded
  • difficulty seeing at night
  • a halo around lights, making night driving difficult
  • seeing double out of the affected eye
  • frequent changes of the prescription of eyeglasses or contact lenses

 

YOUR DIET IS VERY IMPORTANT

A healthy diet may help reduce risk of and/or delay formation and progression of cataracts. Research suggests that a diet high in vitamin C-rich foods — citrus (oranges, kiwi, lemon, grapefruit), bell peppers, strawberries, tomatoes, cruciferous vegetables (broccoli, Brussels sprouts, cabbage, cauliflower) — is helpful in slowing the progression of cataracts. More importantly, adopting good nutrition is a cornerstone of optimizing health early in life and can greatly reduce the risk of developing age-related diseases including cataracts.  For eye healthy recipes visit discoveryeye.org/eye-cook-delicious-food-health/

 

BE SURE TO HAVE AN ANNUAL EYE EXAM

By age 40, all adults should visit an eye specialist for a comprehensive eye exam to screen for early-stage cataracts and other eye diseases that are leading causes of low vision and even blindness. By age 65, a routine eye exam is recommended every year, in most cases to diagnose cataracts that are progressively clouding the lens. Cataract can be more common in people with diabetes, after eye trauma or in those taking corticosteroid medications. A comprehensive eye exam allows eye specialists to detect and monitor cataract progression as well as diagnosing other problems such as glaucoma. Patients should discuss with their eye specialist their vision problems and seek guidance about the timing of cataract surgery when worsening vision has compromised their quality of life and normal functioning.

 

LIVE A HEALTHY LIFESTYLE 

Multiple factors are at play that increase our risk for developing a degenerative eye disease or vision compromising conditions as we age.  If an individual lives long enough, then cataract formation is unavoidable. Living a healthy lifestyle, however, greatly improves an adult’s odds of avoiding early onset, faster progression, or possibly even avoiding the need for cataract surgery in the future.

 

WHY WE PROMOTE CATARACT AWARENESS MONTH

It’s a celebration of sight – The ability to see the world clearly and in all its glory is something we shouldn’t take for granted. Millions upon millions of cells perform complex operations in our eyes to allow us the gift of sight. We should take care of our eyes and appreciate our glorious vision for what it is.

It’s a celebration of science – Science has not only explained to us how intricately our eyes work, but it has also revealed to us the many ways we can repair and treat them in case things go south. Medical advancements have ensured that about 80% of all eye diseases are treatable or can be prevented.

It’s a celebration of modern surgery – There’s “always” light at the end of the tunnel. Today’s cataract surgery is a modern-day miracle developed by dedicated surgeons over the last five decades.  For most of us it is a painless, outpatient surgery with rapid return of excellent vision.

For more information about cataract:

https://discoveryeye.org/eye-conditions/cataracts/

May is Healthy Vision Month

Welcome to May, when we celebrate Healthy Vision Month! As we embark on this month-long journey of raising awareness about the importance of eye health, the Discovery Eye Foundation is thrilled to join the cause.

Our vision is a precious gift and it’s crucial to take proactive steps to maintain it. In this blog post, we’ll explore the significance of Healthy Vision Month and share valuable tips to help you safeguard your eyesight for years to come.

Healthy Vision Month is more than just an annual observance; it’s a reminder of the critical role that vision plays in our daily lives. Our eyes enable us to experience the world around us, from admiring breathtaking landscapes to connecting with loved ones through meaningful eye contact and so much more. According to the American Academy of Ophthalmology, approximately 75% of adults use some form of vision correction, highlighting the prevalence of vision issues in society. However, many people overlook the importance of regular eye care until they encounter vision problems. By dedicating the month of May to promoting eye health awareness, we can empower individuals to prioritize their vision and take proactive measures to preserve it.

Here are a few ways you can help protect your vision

  • Get an annual comprehensive dilated eye exam.
  • Know your family’s eye health history. It’s important to know if anyone has been diagnosed with an eye disease or condition, since some are hereditary.
  • Eat right to protect your sight: In particular, eat plenty of dark leafy greens such as spinach, kale, or collard greens, and fish that is high in omega-3 fatty acids such as salmon, albacore tuna, trout, and halibut. Visit Eye Cook for eye healthy recipes.
  • Maintain a healthy weight and exercise regularly.
  • Wear protective eyewear when playing sports or doing activities around the home, such as painting, yard work, and home repairs.
  • Quit smoking or never start.
  • Wear sunglasses that block 99 -100 percent of ultraviolet A (UVA) and ultraviolet B (UVB) radiation.
  • Wash your hands before taking out your contacts and cleanse your contact lenses properly to avoid infection.
  • Practice workplace eye safety.

Taking care of your eyes also may benefit your overall health. People with vision problems are more likely than those with good vision to have diabetes, poor hearing, heart problems, high blood pressure, lower back pain and strokes, as well as have increased risk for falls, injury and depression.

In addition to your comprehensive dilated eye exams, visit an eye care professional if you have:

  • Decreased vision
  • Eye pain
  • Drainage or redness of the eye
  • Double vision
  • Diabetes
  • New floaters (tiny specks that appear to float before your eyes)
  • Circles (halos) around light sources or if you see flashes of light

For this Healthy Vision Month, take care of your eyes to help them last a lifetime.

April is Women’s Eye Health Month

April is Women’s Eye Health Month to educate women about the steps they can take today to help preserve vision in the future. 

Did you know that more women suffer from visual impairments than men? Two thirds of blindness occurs in women. One reason why women are affected by more eye health issues than men is because they tend to live longer and according to the National Eye Institute, women are also affected by hormonal factors.  Some eye conditions can cause vision loss and even blindness. These include:

The easiest way to test for common eye problems is a dilated eye exam – in which your eye doctor uses drops to widen your pupils and check for common issues.  This exam is the best way to detect eye disease’s early stages.

Good Eye Habits to Lessen or Prevent Future Vision Problems

  • Receive an annual eye exam. Regular dilated eye exams help monitor your vision status.
  • Eat a healthy diet. Good nutrition is the key to good health, including your vision. Dark green vegetables have been shown to reduce the risk of age-related macular degeneration (AMD) potentially. Also, remember to keep your diet low in sodium and caffeine. Visit our website for eye healthy recipes  discoveryeye.org/eye-cook-delicious-food-health/
  • Quit smoking today. Crushing the habit of smoking can reduce the risk of a host of diseases such as cancer and respiratory issues. Smoking is the most important risk factor for AMD and progression.

Having healthy eyes not only keeps us alert but keeps us safe. It is of the utmost importance to keep our eyes safe and have regular eye exams to check for any problems.

March is Save Your Vision month

From wearing the right eye wear and getting regular exams to eating right and caring for your lenses, there are many things you can do to protect your vision.

 Healthy vision starts with you!  Follow these tips to take care of your eyes.

  • Get regular comprehensive dilated eye exams – You may not have any symptoms or eye problems. But visiting your eye care professional for a comprehensive dilated eye exam is the only way to be sure. Some people also don’t realize they could see better with glasses or contact lenses.

A dilated eye exam is the only way to detect some common eye diseases in their early stages. These includes conditions like glaucoma, diabetic retinopathy, and age-related macular degeneration (AMD). During a comprehensive dilated eye exam, your eye care professional places drops in your eyes to dilate them. This allows more light to enter the eye so your doctor can examine for any signs of damage or disease.

  • Know your family’s eye health history – Talk to your family members about their eye health history. It’s important to know since some eye disease or condition are hereditary. This information will help to determine if you’re at higher risk for developing eye problems.

Studies show that you are at an increased risk for eye disease if you have an immediate family member with eye disease, including cataracts, glaucoma, diabetic retinopathy and age-related macular degeneration (AMD). Knowing your family history and informing your ophthalmologist or optometrist.

  • Eat right to protect your sight – Research shows eye health benefits from fish high in omega-3 fatty acids, such as salmon, tuna, and halibut. Eating plenty of dark leafy greens such as spinach, kale, or collard greens as well as fruits and vegetables will help keep your eyes healthy.  Visit our website for eye healthy recipes discoveryeye.org/eye-cook-delicious-food-health/ 
  • Maintain a healthy weight – Being overweight or obese can increase the risk of developing type 2 diabetes and other chronic conditions that could damage your eyes.  If you’re having trouble maintaining a healthy weight, talk to your doctor.
  • Wear sunglasses – Sunglasses are a great fashion accessory, but most importantly, they protect your eyes from the sun’s ultraviolet (UV) rays. When purchasing sunglasses, look for ones that block out 99 to 100% of UV-A and UV-B radiation. 
  • Wear protective eyewear – Protective eyewear prevents eye injuries in the workplace (if needed), while playing sports or doing other activities that could cause damage. They include:
    • Safety glasses and goggles for working and repairing.
    • Safety shields for working at your hobby—gardening, home repairs.
    • Eye guards designed for specific activities and sports.
  • Most protective eyewear lenses are made of polycarbonate, which is 10 times stronger than other plastics. Many eye care providers sell protective eyewear, as do some sporting goods stores. Employers are required to provide a safe work environment, including protective eyewear if needed.
  • Quit smoking or never start – Smoking is as bad for your eyes as it is for the rest of your body. Research has linked smoking to an increased risk of developing:
    • Age-related macular degeneration
    • Cataracts
    • Optic nerve damage
    • Heart disease, lung diseases and various cancers including lung cancer
  • Clean your hands and contact lenses properly – To avoid the risk of infection, always wash your hands thoroughly before putting in or taking out your contact lenses. Disinfect contact lenses as instructed and replace them as directed by your eye care professional.

Eyes and Overall Health

Taking care of your eyes also may benefit your overall health. Some health conditions such as diabetes and high blood pressure can affect your eyes at the initial stage. The eye exam can tell you and your doctor if there are any underlying health conditions that need attention.

In addition to your comprehensive dilated eye exam, visit an eye care professional if you have:

  • Decreased vision
  • Eye pain
  • Drainage or redness of the eye
  • Double vision
  • Floaters (tiny specks that appear to float before your eyes)
  • Circles (halos) around light sources
  • Flashes of light

 

Another way to Save Your Vision is by supporting sight-saving research at the Discovery Eye Foundation.

DONATE NOW

UNDERSTANDING YOUR EYE PRESCRIPTION

If you need eyeglasses, it is because you were diagnosed with a refractive error during your eye exam. This means your eyes have trouble focusing and images can appear blurry. Types of refractive errors include being near-sighted (myopia), far-sighted (presbyopia) or having an astigmatism (your cornea is an irregular shape).

Understanding Your Eyeglass PrescriptionUnderstanding What 20/20 Vision Means

The number is based on you standing a distance of 20 feet in front of a standard eye chart to test your visual acuity. If during an eye test you can read the big E at the top of the eye chart, but none of the letters below that, your vision is considered 20/200. That means you can read a letter at 20 feet that people with “normal” vision can read at 200 feet, meaning you have very poor distance visual acuity. If you can read the seventh line from the top of most charts, your vision is 20/20. Any line below that would be 20/15 or below and indicates that you have exceptional visual acuity. Each eye is tested separately.

Understanding Your Eyeglass Prescription

The prescription you receive may be a form with headings that are filled in, or it may just be written out. In any case, it is written in a specific order, with the results for each eye listed separately.

OD is an abbreviation for oculus dexter, meaning right eye, while OS is oculus sinister, meaning left eye. If both eyes are being referred to the abbreviation you will see is OU (oculus uterque) meaning both eyes.

The next term on your prescription is Sphere (SPH) and is are measured in diopters (D). This number tells you how strong your lenses need to be to correct your vision. If this number has a minus sign (–), you are nearsighted; if the number has a plus sign (+) or is not preceded by any sign, you are farsighted.

Next may be cylinder (CYL), an indicator of the lens power if you have an astigmatism. The number for the CYL has the same format as the SPH, a minus sign (for the correction of nearsighted astigmatism) or a plus sign (for the correction of farsighted astigmatism). If there is no number given you either have no astigmatism, or your astigmatism is so slight that it is not really necessary to correct it.

If you do have a CYL number you will also have an axis number, based on a protractor scale that tells you where on the eye the astigmatism is found. For example, 

SPH –2.50   CYL +5.00 Axis 40 means you have a nearsightedness of -2.50 diopters with an astigmatism of +5.00 along the 40 degree axis.

If you are getting bifocals or progressive lenses, there is another number called an “Add.” This number is the amount of additional correction your eyes need to focus at close distance and will always be a positive number, whether or not the + sign is there.

Needless to say, eyeglasses can be expensive, but understanding a prescription should help you understand why. The stronger the lens the more expensive it is and then with each adjustment, the cost also increases.  Also, don’t forget that anti-glare or UV protective coatings add to the costs, but most people feel it is well worth it. Eye glasses are an investment in your safety, job, independence and letting you enjoy leisure-time activities you enjoy.

DEF’s Vision Legacy Society

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/