What is a Nictitating Membrane?
You may have noticed on your pet cat or dog how there is fine membrane which covers their eyes when they are starting to relax. This is the nictitating membrane, also known as the nictitating eyelid or third eyelid. Nictitate, or nictate, comes from the Latin word meaning “wink.” Nictitating membranes offer protection from environmental […]