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Latest Vision News

May is Healthy Vision Month

May is Healthy Vision Month

What does that mean for you? It means that now is the time to schedule a comprehensive eye  exam. 

While these are one of the exams we may often let fall by the wayside, they are extremely important to maintain our eye health. Comprehensive eye exams serve several purposes. During these exams, pupils, the circular black area in the center of the eye where light enters, are widened with eye drops or viewed without dilation through a special camera. This allows your Eye Doctor to check for vision problems and eye diseases, verify what stage of diseases your eyes may be in, and helps determine if you need glasses, contacts or other treatments. 

Comprehensive eye exams are crucial for all ages, here’s why: 

Pediatric exams test for visual acuity, lazy eye, color vision, ocular health, and more. These are extremely important to test for the school years ahead. 

For older children and teenagers, myopia (nearsightedness) is one of the biggest concerns that comprehensive eye exams detect. Myopia affects the eye’s ability to see distant images clearly. It is important to identify and treat early with glasses or contacts as children and teens begin to learn in larger spaces, play sports, and drive. 

Adult exams are recommended at least every two years, or as recommended by your eye care specialist. Exams for adults are necessary to catch eye conditions that can cause vision loss and even lead to blindness. Some of these conditions are cataracts, diabetic retinopathy, glaucoma, and age-related macular degeneration. 

There are several other conditions that comprehensive eye exams can expose that may not be found without a visit to your optometrist. 

Outside of eye exams, here are 5 ways you can help protect your vision: 

  1. Healthy eating. You know this! Healthy eating helps every part of your body. For your eyes, make sure to add dark, leafy greens and seafood that is high in omega-3 fatty acids to your plate. A great excuse to treat yourself to sushi! We’re adding a spicy sake maki roll to our cart… for delivery.
  2. Protective eyewear. Whether you’re chopping wood for the bonfire pit, mowing the lawn, painting your bedroom walls, or riding your motorcycle around town, protective eyewear is key. Blue-light protection glasses should also be considered to protect your eyes from all the time spent in front of computer screens.
  3. Sunglasses. Much like protective eyewear, sunglasses help protect your eyes from ultraviolet radiation delivered by sun. Not all sunglasses provide the same level of protection. Let us help you pick the best pair!
  4. Clean hands. Wash your hands before putting your contacts in and before taking your contacts out, simply to avoid infection.
  5. Stop smoking. Smoking is known to cause several diseases, but it can also lead to vision loss. It can increase the risk of age-related macular degeneration, cataracts, and more. Mark your calendar for your comprehensive eye exam and mark it as the day to stop smoking. 

Happy healthy vision month! Get your appointment in the books with us today. 

 

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The Background

Over the last several years, research has indicated a strong correlation between the presence of Obstructive Sleep Apnea (OSA) and glaucoma. Information from some of these pivotal studies is presented below.

Did you know

  • Glaucoma affects over 60 million people worldwide and almost 3 million people in the U.S.
  • There are many people who have glaucoma but have not yet had it diagnosed.
  • Glaucoma is the second-leading cause of blindness in the U.S. behind macular degeneration.
  • If glaucoma is not detected and goes untreated, it will result in peripheral vision loss and eventual, irreversible blindness.

 

  • Sleep apnea is a condition that obstructs breathing during sleep.
  • It affects 100 million people around the globe and around 25 million people in the U.S.
  • A blocked airway can cause loud snoring, gasping or choking because breathing stops for up to two minutes.
  • Poor sleep due to sleep apnea results in morning headaches and chronic daytime sleepiness.

The Studies

In January 2016, a meta-analysis by Liu et. al., reviewed studies that collectively encompassed 2,288,701 individuals over six studies. Review of the data showed that if an individual has OSA there is an increased risk of glaucoma that ranged anywhere from 21% to 450% depending on the study.

Later in 2016, a study by Shinmei et al. measured the intraocular pressure in subjects with OSA while they slept and had episodes of apnea. Somewhat surprisingly they found that when the subjects were demonstrating apnea during sleep, their eye pressures were actually lower during those events than when the events were not happening.

This does not mean there is no correlation between sleep apnea and glaucoma - it just means that an increase in intraocular pressure is not the causal reason for this link. It is much more likely that the correlation is caused by a decrease in the oxygenation level (which happens when you stop breathing) in and around the optic nerve.

In September of 2016, Chaitanya et al. produced an exhaustive review of all the studies done to date regarding a connection between obstructive sleep apnea and glaucoma and came to a similar conclusion. The risk for glaucoma in someone with sleep apnea could be as high as 10 times normal. They also concluded that the mechanism of that increased risk is most likely hypoxia – or oxygen deficiency - to the optic nerve.

The Conclusion

There seems to be a definite correlation of having obstructive sleep apnea and a significantly increased risk of getting glaucoma. That risk could be as high as 10 times the normal rate.

In the end, it would extremely wise if you have been diagnosed with obstructive sleep apnea to have a comprehensive eye exam in order to detect your potential risk for glaucoma.

 

Article contributed by Dr. Brian Wnorowski, M.D.

This blog provides general information and discussion about eye health and related subjects. The words and other content provided on this blog, and in any linked materials, are not intended and should not be construed as medical advice. If the reader or any other person has a medical concern, he or she should consult with an appropriately licensed physician. The content of this blog cannot be reproduced or duplicated without the express written consent of Eye IQ.

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