Cherry Eye (Prolapse of the Nictitating Membrane Gland)

Cherry eye occurs when the gland of the third eyelid (nictitating membrane) detaches from its normal position and protrudes, becoming visible as a distinctive red or pink mass in the inner corner of the eye. This gland is crucial for tear production, contributing a significant portion of the eye's natural lubrication. While not immediately life-threatening, cherry eye can lead to dryness, irritation, and inflammation if left unaddressed. It is more common in certain brachycephalic breeds, like Bulldogs and Beagles. Treatment typically involves surgical repositioning of the gland back into its proper place, rather than removal, to preserve its vital tear-producing function and prevent future dry eye complications.