The word comes from the Greek lagos, meaning “hare”, due to the observation that rabbits can sleep with their eyes open thanks to their third eyelids. Nocturnal lagophthalmos in humans ...

In rabbits, three glands are located within the orbit: the lacrimal gland, accessory lacrimal gland, and deep gland of the third eyelid. Secretions from these glands moisten, lubricate ...

The Himalayan rabbit in this report died five months after the owner first noticed the tumor on the eyelid, approximately 3.5 months after brachytherapy with radioactive gold-198 seeds.