Red eyes from sun exposure: what to know

Bright sunlight, reflected glare, wind, sand, and dry air can irritate the clear front surface of the eye. Ultraviolet exposure may cause delayed soreness, watering, gritty feeling, or increased sensitivity to light. Redness can also come from rubbing the eyes after outdoor exposure. Allergy or conjunctivitis may happen at the same time, particularly when itching or discharge is present. Symptoms that are intense, affect one eye markedly, or alter vision deserve more caution.

Move into shade or indoors, remove contact lenses, and rest with the eyes closed for a while. Wear well-fitting sunglasses that block ultraviolet light when outside; a broad-brimmed hat can reduce glare. Do not rub the eyes or use numbing drops without clinical advice. A clean cool compress and suitable lubricating drops may relieve surface discomfort. If dust or grit is present, rinse gently with clean water rather than trying to scrape the eye.

Get urgent assessment for significant pain, strong light sensitivity, blurred or reduced vision, inability to open the eye, a visible foreign body, or symptoms after looking directly at an intense light source. Seek prompt advice after a chemical splash or injury. If mild redness does not improve after leaving the sun and resting, arrange a review.

Ask whether the front surface of the eye appears irritated or injured and which drops are appropriate. Explain how long you were outdoors, whether glare or wind was involved, when discomfort began, and whether you use contact lenses or have vision changes.