EMBRYONIC DEVELOPMENT & STEM CELL COMPENDIUM
Content
All Anatomical Compartments > Compartment Card
Eye >

Lens Placode


Eye.LnP
The lens placode in the embryonic ocular surface ectoderm contacts the underlying optic vesicle, triggering simultaneous of the two, to give rise to the lens pit and optic cup, respectively. The lens pit subsequently detaches from the overlying ectoderm, creating a hollow lens vesicle containing lens vesicle precursor cells. The overlying ectoderm develops into the other anterior structures including the corneal, limbus and conjunctiva epithelium and the eyelid.

In the mouse, the lens placode appears at E9.5; in humans, this occurs on day 28 of gestation.
Lens Placode
Multiple Ancestors Single Ancestor No Descendants Develops from Part of Parent