Your Vision: Getting Fit Post-Pandemic

The past year has taken a toll on the physical and mental health of millions of people.  While we were rightly focused on slowing the spread of the pandemic, widespread shutdowns brought about a more sedentary, inactive lifestyle, which has led to increased weight gain and worsened mental health for many.  As we look ahead and as more people receive the vaccine, it is time to start reprioritizing physical activity and placing much needed attention on our health.

It’s no secret that exercise is the best way to get in shape and to prevent serious health conditions, especially after this pandemic. But did you know that you can actually exercise your way to healthy eyes too?  By eating a healthy diet and exercising regularly, you can help prevent eye conditions linked to obesity and being out of shape.

Below are a few tips on how to get your fitness regimen back on track.

  • Set Goals – The first step to getting back in shape is deciding what you want to achieve. Take a personal inventory and write a contract with yourself, put it someplace where you can see it every day.
  •  Start Small – Getting too ambitious when planning goals can set you up for failure. Instead, ease into the changes. A lot of people get discouraged because they try to change their whole routine immediately.
  • Build Momentum – Mini daily victories create a sense of accomplishment.  A few daily successes will create a snowball effect.  Add more challenges, then a few more and that’s what will keep the momentum going.
  • Enjoy Your Workout – The best way to stick with an exercise routine, is enjoying it. You’re more likely to stay on schedule and exercise more often if you enjoy what you are doing.  Hiking, swimming, boxing, dance or yoga are great options—and create atmosphere that’s inviting.
  • Stretching Matters – It preps your muscles for exercise and cools them down after, guarding against injury. Stretching also improves your posture.
  • Invest In Equipment – You don’t need to spend a lot of money—a few weights are enough to deliver results.  Even minimal equipment allows for more intense and effective workouts.
  • Make it a Habit – Exercise should be part of your daily routine, it should be as normal as showering or brushing your teeth.
  • Get A Workout Buddy – If you can’t recruit a family member or friend, join a Zoom class or an outdoor club. 

Stay active, get plenty of exercise and keep a healthy diet. When you’re tempted to slack off, or quit exercising all together—give yourself a day off to relax.  Just remember how terrific you’ll look and feel when you keep moving.

You’ll probably agree it’s worth working out a few minutes each day to reap the rewards of good health and great vision!

 

Click here for Eye Healthy Recipes.

May-Healthy Vision Month

When it comes to our health, we may visit our doctors and nurses regularly to make sure our bodies are healthy. But what about our eyes? They’re not always top of mind, but they’re just as important! May is Healthy Vision Month, an observance coordinated by the National Eye Institute to motivate Americans to make their eye health a priority and educate them about steps they can take to protect their vision.

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.
  • 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
  • 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 make them last a lifetime.

April is Women’s Eye Health Month

This month of April is dedicated to

WOMEN’S EYE HEALTH MONTH

With Women’s History Month, Women’s Eye Health Month and Mother’s Day all happening this spring, we’ve got all of the women in our lives on our minds. 

Did you know that blindness affects women more than men? The National Institutes of Health reports that 2/3rds of the people with blindness or visual impairments are women.  Often, hormones, and especially life changes such as pregnancy and menopause, cause changes in women’s eyes.  Preventing blindness and vision problems requires keeping a healthy lifestyle, avoiding certain habits, and seeing the eye doctor regularly.

Many women aren’t aware that they have a higher risk for developing eye and vision problems.  In an effort to create awareness of various eye diseases that women are more prone to have than men, April has been dedicated to educating women about these diseases, along with providing resources and recommendations on the best ways to maintain excellent vision for women.

The National Eye Institute also stated that women deal with greater instances of eye disorders, in part, because they tend to live longer than men, are more likely to undergo cancer treatments which affect vision, and experience age-related hormonal changes that can affect the eyes. Women also have higher rates of eye diseases such as cataract, glaucoma, and age-related macular degeneration than men.

As we mentioned, hormones are a factor in developing eye problems, but also lifestyle, genetics, pregnancy and more contribute to the problems. Women pass through several biological and hormone changes that men do not. Pregnancy causes changes in the eyes such as dry eyes, puffiness, migraine headaches that affect vision, light sensitivity and more. If a woman is not pregnant, even taking birth control can cause hormonal changes and blood clots in some cases. If a clot happens, that can lead to strokes that affect vision, sometimes permanently.

Later in life, eye problems become more frequent in both men and women. However, women statistically have a higher chance of developing chronic conditions such as lupus, arthritis, multiple sclerosis and more. All of these conditions can affect eye health.

It’s important for women to know the risks for eye-related diseases resulting in vision impairment and take the steps to prevent eventual vision loss.  Here are some ways that you can help to protect your eyes and save your eyesight:

  • Find out about your family history of eye diseases and conditions.
  • Protect your eyes from the sun by wearing 100% UV blocking sunglasses when outdoors.
  • Don’t smoke.
  • Consume a healthy diet with proper nutrition and special eye health supplements as prescribed by an eye doctor. (Eye Healthy Recipes)
  • Adhere to contact lens hygiene and safety.
  • Adhere to cosmetic hygiene and safety precautions.
  • Protect your eyes against extended exposure to blue light from computers, smartphones and LED lamps.
  • If you are pregnant or planning to become pregnant and have diabetes, see an eye doctor for a comprehensive eye exam. In women who have diabetes, diabetic retinopathy can accelerate quickly during pregnancy and can present a risk for the baby as well.

Mothers are often charged with caring for the eye health of the entire family, but too often their own eye health is neglected.  It is critical that mothers take care of their eyes and overall health so that they can be in the best condition to care for their families.

Speak to your eye care professional about your personal eye health and vision risks so you can exercise the precautions and measures to protect your eyes.   Encourage the other women in your life to do so as well.  Once vision is lost, it often cannot be regained and there are many steps you can take to prevent it with proper knowledge and awareness.

The most important way to prevent vision loss is to ensure you schedule regular eye exams. Don’t wait for symptoms to appear as many eye issues are painless and symptomless, and sometimes by the time you notice symptoms, vision loss is untreatable.

Click here for Eye Healthy Recipes.

 

How to Prevent Eye Strain While Working From Home

Working from home has become the new normal for many Americans during this pandemic.  Most are happy without the commute, although working outside the office and in all sorts of strange places, such as bedrooms, backyards, living rooms, has become common place. We’ve had to learn how to work remotely, which in turn means spending a lot more time using computers and smartphones.

Moving out of properly-lit classrooms and offices – and away from ergonomically correct desks – can have long-term effects on our eyes.  Excessive time at a computer screen under the best conditions can lead to symptoms of eye strain.

Eye Strain Symptoms include:

  • Headaches
  • Blurred vision
  • Uncomfortable dry eyes
  • Neck and shoulder pain

To help avoid eye strain, here are few tips for working from home:

  • Record time spent on screens – Most adults age 18 and older spend at least 13 hours each day using digital devices. Extended screen time can cause discomfort and vision difficulties. When working from home, you may lose track of how much time you’re on your computer or smartphone.  So keep track of the hours you use devices. That way, you’ll be aware of the demand you’re placing on your eyes.
  • Rest and blink your eyes – Researchers found that over 30% of people using digital devices rarely take time to rest their eyes. Just over 10% say they never take a break, even when working from home. The eye muscles get overworked and don’t get a chance to relax and recover. Experts suggest the 20-20-20 rule; every 20 minutes, focus your eyes and attention on something 20 feet away for 20 seconds.  You can also get up and walk around for a few minutes.

 

  • Reduce exposure to blue light – In the spectrum of light, blue is more high energy and close to ultraviolet light. So, if you use screens throughout the day, ask your eye doctor about the value of computer glasses that block blue light. Reducing exposure to blue light may help lessen vision problems.  At home, using digital devices until bedtime can overstimulate your brain and make it more difficult to fall asleep. Eye doctors recommend no screen time at least one to two hours before going to sleep.

  

  • Sit up straight – Proper posture is important. Your back should be straight and your feet on the floor while you work. Elevate your wrists slightly instead of resting them on the keyboard.

 

 

  • Proper lighting – A setting that’s too bright (sunny backyard) or too dim (cavernous basement) can cause eye strain and headaches. Your screen should be bright enough that you don’t need to squint. A screen shield can help reduce glare.

 

  • Set up monitor properly – Make sure your computer screen is about 25 inches, or an arm’s length, away from your face. The center of the screen should be about 10-15 degrees below eye level.  Cut glare by using a matte screen filter. You can find them for all types of computers, phones, and tablets.  Increase font size or set the magnification of the documents you are reading to a comfortable size.

 

  • Consider computer glasses –For the greatest comfort at your computer, you might benefit from having your eye doctor modify your eyeglasses prescription to create customized computer glasses. This is especially true if you normally wear distance contact lenses, which may also become dry and uncomfortable during extended screen time.  Computer glasses also are a good choice if you wear bifocals or progressive lenses, because these lenses generally are not optimal for the distance to your computer screen.
  • Create Technology-Free Zones – These tips can help reduce eye strain when you’re forced to look at screens all day, creating technology-free zones in certain areas of your home, like the bedroom or bathroom. If you spend the entire day working on the computer, getting in bed and scrolling through social media until you fall asleep won’t do your eyes any favors.

Once you’re done for the day, truly unplug. Read a book or spend some quality time with family members without your phone.

 

  • Get an Eye Exam – If you have tried all these tips and eye strain is still an issue, it might be time to see an eye care professional to schedule an eye exam.  The exam may even detect underlying issues before they becomes worse.

 

 

 

 

 

What To Expect On Your Next Visit To Your Eye Care Practitioner During COVID-19 Pandemic

Taking care of your health is critical and you may have concerns related to eye health as a result of the COVID-19 pandemic. The offices of Ophthalmologists and Optometrists are resuming the delivery of comprehensive eye and vision care and implementing new protocols to provide care in a safe and healthy environment.

While changes vary from state-to-state as well as individual practice locations, patients should expect that their eye doctors, like all medical professionals, are adhering to federal, state and local health directives regarding infection prevention measures and implementing appropriate safety procedures to reduce the risk of COVID-19 transmission within the office. These not only include strict protocols for cleaning and sterilization, but measures to effectively manage patient flow and encourage physical distancing. Patients should expect screenings for symptoms of COVID-19 and taking patients’ temperature upon their arrival at the facility, limiting the number of guests allowed in waiting rooms and requiring everyone to wear a facemask and/or gloves before entering the office.

Prior to the appointment, you should be asked a series of questions such as whether you have been diagnosed with COVID-19, whether you have been exposed to anyone who has an active COVID infection, and whether you have any of the typical symptoms of a COVID-19 infection including fever, cough, shortness of breath, or some impairment of your sense of taste or smell. You may also be asked about recent travel history. If there is a concern that you may have COVID-19 infection, then the appointment may be rescheduled to a later date.

Once you get to the office, you will be interviewed again to see if you have any symptoms suggestive of COVID-19 infection. You may be asked to have your temperature taken with a non-contact thermometer and to wash your hands or scrub your hands with hand sanitizer before entering the office. You may be asked not to bring any family members or assistants with you.

Every patient (and anyone accompanying the patient) is required to wear a mask, and the mask must be worn properly, covering both the nose and mouth. The mask must be worn through the entire visit, and conversations with the doctor or staff will be limited. The tests that are used to monitor glaucoma may be performed with modified protocols to minimize the time you spend at the office.

How to Prepare for Your Eye Doctor Visit

  • Don’t go if you’re feeling sick. If you wake up with a cough or a sore throat, it’s probably best to reschedule your appointment and call your primary physician. Your routine eye exam can wait. Don’t be surprised if someone takes your temperature upon arrival to ensure safety for everyone.
  •  Fill out forms in advance. If possible, fill out your intake forms online before your appointment. This will limit your face-to-face contact and your overall time within the office. Any additional information that’s requested by your doctor can also be done over the phone.
  • Follow social distancing guidelines. There may be new procedures in place to help with social distancing, from markers on the ground indicating where to stand, to a limited number of people allowed in certain areas. Depending upon the office location, you may need to call from your car to check in. Every office is different, so be sure to check with your doctor’s office about their requirements.
  • Go alone to your appointment. Most offices are only allowing the patient to enter the office, with the exception of those who require a caregiver or a guardian to attend the appointment with them. This limits the amount of people going in and out of the office, and helps maintain a more sterile, clean environment.
  • Wear a mask to your appointment. Depending on your state, a mask may either be mandated or highly recommended when you are in public places. The Centers for Disease Control and Prevention highly advises people to wear a mask covering their nose and their mouth in order to help stop the spread of COVID-19.

As your eye care doctors begin reopening and operations proceed under a “new normal,” your ophthalmologist and/or optometrist are working to ensure the continued safe delivery of essential eye care during the COVID-19 pandemic.

To know exactly what to expect during your appointment, call your doctor’s office to find out how to best prepare for your visit.

Blinking – Why is it so important?

Blinking is something we all do every minute, whether we think about it or not. The average person blinks 15-20 times per minute, or about 1,200 times per hour.

So why do we unconsciously move our eyelids over our eyeballs so many times? Because it’s extremely important for your eyes and vision.

Although you may not think of blinking as a major component of your health care routine, if you didn’t blink for extended periods you’d be at higher risk of eye infection.  You would also have uncomfortable, dry eyes and would have decreased clarity of vision. The most important benefit of blinking is that it cleans the surface of your eye of any debris and washes it away with fresh tears. The thin coating of tears helps sharpen your vision, clearing and brightening the image your retina receives. Blinking also nourishes your eye with oxygen and nutrients, keeping your eyes healthy and comfortable.

Blinking wipes and renews your tear film, the smooth, moist layer covering our eyeballs.

The tears have 3 important layers.  The inner most is the mucous layer that contains ‘mucins’ to keep the tears attached to the surface cells of the cornea.  This material is produced by ‘goblet cells’ in the conjunctiva.  The next layer is aqueous or ‘water-like’ that is produced by the lacrimal gland located in the upper-outer quadrant of the eye region. Finally, the outer layer is lipid or ‘oil-like’ that prevents the other layers from evaporating. These lipids are produced by tiny glands along the lid margins, next to the eyelashes.  If any of these layers are absent or abnormal, then the cornea becomes vulnerable to damage.

The tears contain many protein components such as lysozyme, which function like natural antibiotics. The tear film also contains many nutrients and amino acids to nourish the cells of the cornea, which is the clear, dome-like structure on the front of the eye.

Besides keeping your eyes lubricated, the tear film also:

  • Helps form an almost perfectly smooth front optical surface on the cornea helping light to focus properly.
  • Washes away debris.
  • Transfers oxygen from the atmosphere to the cornea, since the cornea lacks blood vessels to deliver it directly.
  • Provides a pathway for white blood cells when there is an injury to the eye’s surface.
  • Prevents infection due to presence of lysozyme and other antibacterial enzymes.

Your eyelids also play a significant role, aside from protecting your eye and keeping things dark while you sleep. There is also a slight horizontal movement of the eyelid that pushes debris toward the tear ducts, which are the small openings at the inner corners of the eyes through which tears drain into your nose. That is why your nose runs when you cry.

Blinking exercises are a great way to keep your eyes moist. Blinking stimulates tear production and gives our eyes a chance to wash away any debris that has accumulated on the surface of the eye. Individuals who spend a lot of time on the computer or reading a lot tend to blink less often than they should. Therefore, if your eyes feel dry and irritated when using the computer or reading, then look away and do the following blinking exercises.

Blinking Exercises for Dry and Irritated Eyes:

  1. Close your eyes quickly and tightly. Squeeze your facial muscles around your eyes for three to five seconds. Open your eyes slowly and relax your facial muscles. Keep your eyes open for another three to five seconds and repeat the squeezing process five to seven times.
  2. Use the 10-10 rule and every 10 minutes look at away from your computer and intentionally blink 10 times. Then resume your activities.

Beauty is in the Eyes of the Beholder

I love the idea that beauty is in the eyes of the beholder. It reminds us that individuals can make choices about what they perceive to be true beauty.

Let’s consider art… one person’s beautiful can be another person’s junk. If beauty is in the eyes of the beholder, the question is – are we taking the time to appreciate all that surrounds us? From Mother Nature’s unlimited panoplies of possibilities to the innocent smile of a child, beauty is the catalyst that makes being alive the greatest of all human adventures.

I am sure you’ve heard the phrase “stop and smell the roses,” so why not take the time to stop and observe the beauty your eyes can behold.

The Discovery Eye Foundation is working every day to preserve your vision and give all of us the chance to see what’s truly beautiful and treasure it.  All you have to do is open your eyes and take a look.

Louis Armstrong said it well:

I see trees of green and red roses too.
I see them bloom for me and you.
And I think to myself,
what a wonderful world.

You’re right Louis… it is a wonderful world if we all just keep appreciating the beauty that’s out there for all of us.

 
Donate today to help support the Discovery Eye Foundation! 

DonateNow

Tom Sullivan
DEF’s Ambassador of Vision
sullivanvision.com

 

Coronavirus and Your Eyes: What you should know

Coronavirus (COVID-19) can cause mild to severe respiratory illness. Symptoms such as fever, cough, shortness of breath and pink eye can show up 2 to 14 days after a person is exposed. People with severe infections can develop pneumonia and even die from complications of the illness.

To cut your personal risk of contracting the COVID-19, avoid touching your eyes, nose, mouth and face with unwashed hands. It is the mucous membranes (membranes that line various cavities in the body) that are most susceptible to transmission of the virus.

To avoid infecting others with the coronavirus, the Centers for Disease Control and Prevention (CDC) has recommended the use of face masks to be worn when out in public. Face masks can reduce the spread of coronavirus by people who are infected but have no symptoms of the virus (asymptomatic). Face masks, however, do not protect your eyes from infection.

Here are a few tips on how to protect yourself and others:

1. Practice safe hygiene and social distancing — The Centers for Disease Control and Prevention (CDC) offer these general guidelines to slow the spread of disease:

  • Wash your hands often with soap and hot water for at least 20 seconds. (Singing Happy Birthday twice is about 20 seconds)
  •  You should especially wash your hands before eating, after using the restroom, sneezing, coughing or blowing your nose.
  • If you can’t get to a sink, use a hand sanitizer that has at least 60% alcohol.
  • Avoid touching your face — particularly your eyes, nose, and mouth.
  • If you cough or sneeze, cover your face with your elbow or a tissue. If you use a tissue, throw it away promptly. Then go wash your hands.
  • Avoid close contact with sick people. If you think someone has a respiratory infection, it’s safest to stay 6 feet away.
  • Stay home when you are sick.
  • Regularly disinfect commonly touched surfaces and items in your house, such as doorknobs, refrigerator door handles and counter tops.

2. Coronavirus may cause pink eye, so avoid touching eye discharge — Someone may have pink eye but it doesn’t mean that person is infected with coronavirus. But a recent study suggests that up to one third of people hospitalized with coronavirus experience eye problems, such as viral pink eye or conjunctivitis. It’s important to know that the virus can spread by touching fluid from an infected person’s eyes, or from objects that carry the fluid.

3. Avoid rubbing your eyes — We all tend to do it and natural habits can be hard to break but doing so will lower your risk of infection. Use a tissue instead of your fingers when you feel the urge to rub your eye or even to adjust your glasses. Dry eyes can lead to more rubbing, so consider adding moisturizing drops to your eye routine. If you must touch your eyes for any reason wash your hands first with soap and water for at least 20 seconds. Then wash them again afterwards.

4. If you wear contact lenses, consider switching to glasses for a while — There’s no evidence that wearing contact lenses increases your risk of coronavirus infection although contact lens wearers touch their eyes more than the average person. Substituting glasses for contacts can decrease irritation and will lower the chances of you touching your eye. If you choose to continue wearing contact lenses, follow these hygiene tips.

5. Make sure you are well supplied on eye medicine prescriptions if you can — During this pandemic experts have advised patients to stock up on critical medications, enough to get by if you are quarantined or if supplies become limited. If your insurance allows you to get more than 1 month of essential eye medicine, such as glaucoma drops, you should do so. Some insurers will approve a 3-month supply of medication in times of natural disaster. Ask your pharmacist or ophthalmologist for help if you have trouble getting approval from your insurance company. Don’t wait until the last minute to contact your pharmacy, request a refill as soon as you’re due.

 

IF YOU’RE NOT FEELING WELL – Call your family doctor. If you suspect you may have pink eye (conjunctivitis), call an eye doctor near you. It is suggested that patients not go directly to medical or eye care facilities without a prior phone call to help to decrease the possible spread of the virus. A phone call allows the health facility to prepare for your visit and diagnose and treat you in a proper manner.
You may feel nervous about going to the doctor’s office during this pandemic. But treatment for eye emergencies should not be delayed. Ophthalmologists, like all medical professionals, follow strict hygiene and disinfection guidelines.

Ophthalmologists are available to treat urgent eye issues, deliver eye injections and provide critical care. Call your ophthalmologist or other medical doctor as soon as possible in the following situations:

  • You have macular degeneration or diabetic retinopathy and get regular eye injections.
  • You notice changes in your vision (like blurry, wavy or blank spots in your field of vision).
  • You experience an eye injury, even if it seems minor.
  • You suddenly lose some vision.
  • You have eye pain, headache, red eye, nausea and vomiting.

Protect yourself and the eye care team by following these precautions:

  • Wear a mask to a medical appointment. The mask should cover your nose and mouth.
  • If you have a cough or a fever, or have been in close contact with someone who has these symptoms, you must call your doctor’s office ahead of time and let them know. After you speak with the health care profession, it may be decided that your visit is not an emergency, and you can be treated at home. If you arrive sick at the doctor’s office, you should wear a protective covering or mask, and they may want you to wait in a special room away from other patients.
  • If you need to cough or sneeze during your exam, move back from the microscope. Bury your face in the crook of your arm or cover your face with a tissue. Wash your hands with soap and water right away.

For more Coronavirus information visit: www.cdc.gov/coronavirus

For more information about the Discovery Eye Foundations new research for Coronavirus vaccine visit: www.discoveryeye.org/covid-19-emergency-research/

WARZONE

A SPECIAL MESSAGE FROM DEF’S AMBASSADOR OF VISION

At this writing, the death toll from CoronaVirus (COVID-19) has just surpassed 60,000 with over 1 million cases reported in the US. It is almost impossible to comprehend the scope of this horrific pandemic, and the price that is being paid by healthcare professionals along with so many families who are unable to say goodbye to their loved ones who have often been forced to die alone.

At the same time, it was striking to learn that the four month death toll from the virus has just eclipsed the number of lives lost in the entire Vietnam War. We have heard the pandemic described as a war fought against a hidden enemy. While healthcare professionals confront the enemy in overcrowded hospitals across our country, there are others working just as hard in search of solutions that will allow us to return to our treasured normal way of life.

Researchers are quiet heroes laboring in laboratories in virtual anonymity, but with the same urgency as the healthcare professionals serving on the front lines of the battlefield. Whether it is in search of a vaccine or of a drug that may increase the possibility of overcoming the virus, the Discovery Eye Foundation is presently funding some of the critical efforts. As in past wars, all of us must do our part in the effort to defeat an enemy that continues its death march across the entire American landscape. No city or town, state or county, is immune from the icy hand of this most Grim Reaper.

I was attending college at the height of the Vietnam War, and I remember watching the evening news as the death toll continued to mount. Somehow, I found myself numb and somewhat insulated even as the numbers of casualties kept rising. It all changed when two of my friends from high school were lost during the 1968 Tet Offensive. Death became oh-so-real. We cannot allow the constant media exposure to dampen our awareness and our commitment to finding a cure and achieving complete victory in this all-out war.

When you contribute to Discovery Eye Foundations COVID-19 Emergency Fund, your funds go directly into the hands of the researchers. Even more important, their work will begin immediately. Your generosity has allowed us to be difference makers in the preservation of vision. Please join us as we enter the fight and turn our attention to finding answers to this most lethal and present danger.

To help the Discovery Eye Foundation join the fight against COVID-19, donate today!

DonateNow

Tom Sullivan
DEF’s Ambassador of Vision
sullivanvision.com

OUR EYES WORK LIKE CAMERA’S!

The inner workings of the human eye are complex, but at the same time, fascinating. Have you wondered how exactly they do work or what are the major parts of the eyeball involved in creating vision? Let’s find out.

These tiny cameras spend every day processing millions of pieces of information at lightning fast speeds, and turn them into the simple images we see almost instantly.

In reality, this process is anything but simple. The eye has several distinct parts, each of which has specific responsibilities that work together like a machine.

The eyeball is just like a camera. In fact, human eyes are part of a classification known as “camera-type eyes.” And just like a camera, it can’t function without the presence of light.  As light hits the eyes, it’s focused by the eye in a way similar to a camera lens. This process allows the images we see to appear clear and sharp rather than blurry.

There are specific parts of the eye that make this focusing process possible. Each beam of light that hits the eye goes through a series of steps:

Step 1: Light passes through a thin layer of moisture

Step 2: Light hits the cornea.  The cornea is transparent, and is the first layer to begin focusing light within the eye. The cornea is connected to the sclera, which is a tough fiber on the outside of the eye that acts as protection.

Step 3: Behind the cornea is another liquid layer known as the aqueous humor, and its job is to maintain pressure levels in the front of the eye as light is passing through.

Step 4: Once light has passed through the aqueous humor, it has finally reached the pupil. The pupil is the round entryway of the colored iris.

Step 5: Once the pupil determines how much light it will let inside your eye, the job passes to the lens. The lens factors in the amount of light the pupil lets in, and figures out how far away you are from the object that the light is reflecting off of, or the object you’re trying to see. From there, the lens focuses your image into an accurate view of what you’re looking at. Part of this process is controlled by muscles in the lens called ciliary muscles, which expand and contract to pull on the lens and allow it to focus properly.

Step 6: As light reaches the center of the eye passes through another layer of moisture, called the vitreous, or vitreous humor. Then, it reaches the final stop in the process: The Retina.

The retina is the back of the eye. If the lens in your eye is most like a camera, the retina is most like its film – this is where the final product is projected. The retina has several parts:

  • Macula: The center of the retina. The center point of the macula is called the fovea, and it has the most photoreceptors and nerve endings of any part of the eye.
  • Photoreceptors: Split into two designations – rods and cones.
    • Cones are in the macula. When there is bright light, cones provide clear, sharp central vision and detect colors and fine details.
    • Rods are located outside the macula and extend all the way to the outer edge of the retina. They provide peripheral or side vision. Rods also allow the eyes to detect motion and help us see in dim light and at night.

  • Retinal pigment epithelium: Abbreviated RPE, this is a tissue layer below the rods and cones which absorbs any extra, unneeded light.
  • Choroid: The choroid is behind the retina, and is in charge of making sure the retina and RPE have enough nutrition flowing from small blood vessels.

Once the photoreceptors have converted light into an electronic signal, they send a signal to the brain’s visual command center and you have vision. It’s amazing what even small parts of our bodies can do.

 

How the Eye Works