2020–2021 BCSC Basic and Clinical Science Course™
7 Oculofacial Plastic and Orbital Surgery
Part III: Lacrimal System
Chapter 14: Anatomy, Development, and Physiology of the Lacrimal Secretory and Drainage Systems
This chapter includes a related video. A link to the video is provided within the text; a page containing all videos in Section 7 is available at www.aao.org/bcscvideo_section07.
Biopsy of the lacrimal gland is preferentially performed on the orbital lobe to avoid damage to the secretory ductules.
Congenital nasolacrimal duct obstruction (NLDO) may not be apparent until tearing function commences at approximately 6 weeks of age.
The tear pump actively drains tears during the blink cycle.
See Chapters 1 and 4 in BCSC Section 2, Fundamentals and Principles of Ophthalmology, for additional discussion, including illustrations, of some of the topics covered in this chapter.
Excerpted from BCSC 2020-2021 series: Section 10 - Glaucoma. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.