Problems in the upper lacrimal system have often been under-recognized as a cause of epiphora. In this review, we discuss the anatomy of the upper lacrimal system as well as the assessment of tear ...

Eye problems are common in both laboratory and pet rabbits. This column reviews the anatomy of the nasolacrimal duct system in rabbits and describes the appropriate techniques for working up a ...

One can see that the problems associated with the upper lacrimal drainage system can be complex. We can begin to consider these problems by first establishing whether true epiphora exists.