erythropsia

Erythropsia is a rare visual disturbance characterized by the temporary perception of all objects as having a reddish hue. It is also known as red vision or seeing red. This condition is typically transient, meaning it lasts for a short period.

The most common cause of erythropsia is prolonged exposure to bright light, particularly sunlight. This can occur after activities like skiing, mountaineering, or spending extended time outdoors without adequate eye protection. The intense light is thought to overwhelm the photoreceptor cells in the retina, leading to temporary dysfunction.

Another significant cause is related to surgical procedures, especially cataract surgery. Following the removal of a cloudy lens and its replacement with an artificial one, some individuals may experience erythropsia. This is believed to be a result of the eye adapting to the clear, artificial lens after being accustomed to a clouded natural lens. The sudden influx of light intensity and color may cause the transient red vision.

Erythropsia is generally harmless and resolves on its own without specific treatment. It is a symptom rather than a disease itself. If the red vision persists or is accompanied by other visual abnormalities, it is advisable to consult an ophthalmologist to rule out any underlying ocular conditions. Management typically involves allowing the eyes to rest and avoiding further exposure to intense light.