The Probert Encyclopaedia of Medicine

LACHRYMAL DUCT

The lachrymal duct is one of two channels that secretes the sterile tear fluid that constantly bathes the front of the eye and its thin protective covering membrane, the conjunctiva. Although tear flow is continual, only about 1/2 to 2/3 of a gram of fluid is produced per day. The lachrymal duct is located in the inner corner of the lower eyelid.
Research Lachrymal Duct