Ultraviolet keratitis

Ultraviolet keratitis is a condition of the eye caused by exposure to ultraviolet (UV) radiation. It is also known as photokeratitis, snow blindness, or welder's flash.

Causes

Ultraviolet keratitis is typically caused by exposure to ultraviolet radiation, often from the sun, but also from artificial sources such as tanning beds or welding arcs. It can also occur at high altitudes where the UV radiation is more intense, such as on mountains or snow fields, hence the term "snow blindness".

Symptoms

Symptoms of ultraviolet keratitis can occur within a few hours of exposure and may include pain, redness, blurred vision, sensitivity to light, and the sensation of having a foreign body in the eye. In severe cases, temporary blindness can occur.

Treatment

Treatment for ultraviolet keratitis primarily involves managing the symptoms until the eye heals. This can include the use of pain relief medication, eye drops, and avoiding exposure to light. In severe cases, a doctor may prescribe steroid eye drops to reduce inflammation.

Prevention

Prevention of ultraviolet keratitis involves protecting the eyes from UV radiation. This can be achieved by wearing sunglasses that block UV rays, using a welding helmet when welding, and avoiding the use of tanning beds.

See also

• Keratitis
• Ultraviolet
• Eye protection