WebMD Blogs
Icon

Eye On Vision

Dr. Lloyd's blog has now been retired. We appreciate all the wisdom and support Dr. Lloyd has brought to the WebMD community throughout the years. Continue to get the latest information about vision by visiting the Eye Health Center. Talk with others about vision on the Eye & Vision Health: Member Discussion message board.

Saturday, December 10, 2005

Snow Blindness: Skiers beware!
AddThis Social Bookmark Button

Here's advice to help both experienced and rookie snow enthusiasts.

The clear cornea not only helps focus a clear visual image on the retina, it is also a vital filter that protects the retina from dangerous ultraviolet light. Ultraviolet light is invisible and is highly toxic to the delicate retina. Fortunately, the transparent cornea absorbs UV and so does the crystalline lens. Too much UV, however, can injure the cornea.

The winter ski season is upon us. In addition to a sturdy helmet make sure you wear ski goggles with adequate UV protection. Did you know that at higher altitudes more UV rays penetrate the thinner atmosphere? The beautiful white snow reflects sunlight back towards the skier, effectively doubling the UV exposure. The surface of the exposed cornea becomes sunburned. This is snow blindness, the lay term for photokeratitis. The blurry vision and intense eye pain usually does not begin until hours later -- ruining your apres ski!

It usually takes 48 hours or more for the eyes to heal. Patching and eye lubricants offer temporary relief. Recurrent attacks can lead to permanent corneal scarring.

Don't waste those expensive lift tickets! Skiers and snowboarders need to make sure to wear goggles that offer 100% protection to both UVA and UVB.


Related Links: How to Maintain Good Eyesight, How to Pick Good Sunglasses

Technorati Tags: ,,

Posted by: Dr. Lloyd at 10:46 AM

The opinions expressed in the WebMD Blogs are of the author and the author alone. They do not reflect the opinions of WebMD and they have not been reviewed by a WebMD physician or any member of the WebMD editorial staff for accuracy, balance or objectivity. WebMD Blogs are not a substitute for professional medical advice, diagnosis, or treatment. Never delay or disregard seeking professional medical advice from your physician or other qualified health provider because of something you have read on WebMD. WebMD does not endorse any specific product, service or treatment. If you think you have a medical emergency, call your doctor or dial 911 immediately.