Figure 1: The nasolacrimal duct opening in the rabbit is located a few millimeters ... and deep gland of the third eyelid. Secretions from these glands moisten, lubricate, and flush the surface ...

Diversity and adaptations The third eyelid helps aquatic animals, such as manatees, with underwater vision. Birds of prey, ...

When we handled the rabbit, the eyes appeared to become larger and to bulge even more. The third eyelid was not prolapsed; fluorescein eye stain and Schirmer tear tests were negative; and ...