Main Model
41 Lacrimal caruncle
In the medial angle of the eye, a reddish shallow reservoir
of tears, the lacrimal lake, can be observed. Within the lake
is the lacrimal caruncle, a small mound of moist modified
skin. Lateral to the caruncle is a semilunar conjunctival fold,
which slightly overlaps the eyeball. The semilunar fold is a
rudiment of the nictitating membrane of birds and reptiles.
When the edges of the eyelids are everted, a small pit, the
lacrimal punctum, is visible at its medial end on the summit of a small elevation, the lacrimal papilla.