Cherry Eye is like a bubble, usually an inflammation of the third eyelid. It may show up on one side, then on the other. Exposure of this sensitive third-eye tissue often results in secondary inflammation, swelling, or infection. Cherry eye appears like a very red lump in the inside corner of the eye, or eyes if both are affected. Despite its angry, red appearance, this condition does not cause pain but can interfere with the normal tear production for that eye. This third eyelid gland is thought to produce approximately 30 percent of the tear production for the eye.
Cherry eye occurs when the tear-producing gland swells or protrudes from the lid like a red, fleshy mass. When the gland protrudes, called eversion, the usually moist tissue is exposed to air and other irritations, like a paw. This can cause the interruption of blood supply to the gland.
It seems that there is no way of preventing cherry eye. If caught early, cherry eye may be resolved with a closed-eye massage of the affected eye. However, we do recommend an e-collar so that no further injury is caused to the eye.