2020–2021 BCSC Basic and Clinical Science Course™
11 Lens and Cataract
Chapter 4: Embryology and Developmental Defects
Normal Development of the Lens
The lens pit appears at 29 days of gestation as an indentation (infolding) of the lens placode. The lens pit deepens and invaginates to form the lens vesicle.
Excerpted from BCSC 2020-2021 series: Section 11 - Lens and Cataract. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.