I Have a Lump in the Tear Duct of My Eye - Should I Be Worried?

The anatomy of the nasal end of each eye has unique and essential characteristics for tear drainage. Positioned slightly lower than the opposite side, this area facilitates the flow of tears into the tear duct, leading them from the eye to the nose. This is the main reason why we experience nasal drip when crying. Also located in this region is the semilunar fold of the conjunctiva, a vestigial structure in humans, equivalent to the third eyelid in various animal species. This detail underscores the complexity and evolution of ocular anatomy.