Red eyes can occur for many reasons, ranging from mild irritation to underlying eye conditions that require medical care. Identifying the cause of redness is the first step toward effective treatment and lasting relief.
Red eyes occur when the small blood vessels on the surface of the eye become enlarged or irritated. It may cause the white portion of the eye to appear pink, red, or inflamed.
The redness may affect one or both eyes and may occur suddenly or develop gradually. While some cases are temporary and resolve on their own, others may signal conditions such as infection, inflammation, allergies, or dryness that require treatment.


