About The Medical Condition Third Eyelid

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Find the definition of the medical term Third Eyelid. Third Eyelid defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.

Third Eyelid

Third Eyelid Medical Condition Defined & Explained
Third Eyelid Medical Condition

What's The Definition Of The Medical Condition Third Eyelid?

A fold of the mucous membrane of the CONJUNCTIVA in many animals. At rest, it is hidden in the medial canthus. It can extend to cover part or all of the cornea to help clean the CORNEA.

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