Objectives:  After this lecture, the resident/student will be able to:
1.    List the parts of the lacrimal system
2.    List the related nasal and sinus structures of the lacrimal system
3.    Differentiate the various etiologies of tearing including:
- Hypersecretion
 - Abnormal lacrimal pump mechanism
 - Nasolacrimal duct obstructions
 
Please read Chapter 14, 15.