While tearing has many causes, a blocked tear duct is the most significant abnormality.
A blocked tear duct results not only in tearing but also in infections. Produced
predominately by structures on the surface of the eye, tears drain through small
passageways in the inner eyelids into the nose and throat. With a blocked tear duct,
excess tears accumulate on the surface of the eye and a painful swelling may develop
in the inner eyelid. A dacryocystorhinostomy, abbreviated as a DCR, creates a new
passageway for tear drainage. Doctor Rodgers performs DCRs with and without skin
incisions. In the latter a surgical endoscope is utilized. Tubes are commonly placed
through the tear duct at the time of surgery, and the tubes are subsequently removed in
the office.