Photokeratitis
Photokeratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense sunlight) or artificial (e.g. the electric arc during welding) sources. Photokeratitis is akin to a sunburn of the cornea and conjunctiva, and is not usually noticed until several hours after exposure. Symptoms include increased tears and a feeling of pain, likened to having sand in the eyes.
Causes[edit | edit source]
The principal sources causing photokeratitis are the ultraviolet rays from the sun, reflection of the sun from snow and ice, and exposure to the UV rays from artificial sources like the electric arc used in welding.
Symptoms[edit | edit source]
The symptoms of photokeratitis can be uncomfortable and distressing. They include:
- A sensation of having sand in the eyes
- Pain in the eyes
- Redness
- Blurry vision
- Sensitivity to light
- Swelling around the eyes
- Temporary vision loss or color changes in vision
Prevention[edit | edit source]
Prevention of photokeratitis primarily involves protection of the eyes from UV light by wearing sunglasses that block 99–100% of UV rays, and a hat to block indirect sunlight. For snow sports, well-fitted wrap-around sunglasses or goggles are essential to block sunlight from snow and ice. Welders can prevent photokeratitis by using proper eye protection with the appropriate filters.
Treatment[edit | edit source]
Treatment for photokeratitis is primarily supportive. This can include:
- Avoiding further exposure to the sun or bright light
- Using artificial tears or lubricating ointments
- Taking pain relievers
- Using a cool, wet compress on the eyes
See also[edit | edit source]
| Health Topics > A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| View All Health Topics in one page! | Health Encyclopedia | Index of health articles |
Professions:Medicine | Nursing | Pharmacy | Healthcare science | Dentistry | Allied health professions | Healthcare
| Photokeratitis Resources | |
|---|---|
|
 |
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
|
WikiMD's Wellness Encyclopedia |
| Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD
