What is the most common medical concern from UV exposure?

• A. Photokeratitis
• B. Sunburn
• C. Cataracts
• D. Skin cancer

Answer: (A)

UV exposure can cause both immediate eye injuries and long-term skin and eye problems, but the most common medical issue you see related to UV is photokeratitis. This is essentially a corneal surface burn from UV-B exposure, which many outdoors workers and people in bright environments can develop after enough exposure to sunlight, snow glare, or reflected UV from water or sand. It isn’t typically a chronic condition like cataracts or skin cancers; instead, it presents acutely with symptoms such as painful, red, tearing eyes and sensitivity to light, often appearing several hours after exposure and usually resolving within a day or two with rest and supportive care. Prevention is key: wear sunglasses that block 100% of UVA and UVB, use a wide-brim hat, and avoid very bright, reflective surfaces when UV levels are high. While sunburn, cataracts, and skin cancer are important UV-related concerns, photokeratitis is the most common immediate medical consequence associated with UV exposure.