Here's is the simplest way to remember embryology of eye.
*Out of all layers (ecto,meso, endo), the endoderm doesn't contribute to the embryology of eye.
* Mesoderm forms - extraocular muscles
* Rest of the structures are derived from ectoderm.
* Surface ectoderm forms the structures which are visible to us from outside like Corneal epithelium
Conjunctival epithelium
Lacrimal gland
Lens ( important)
*Neuroectoderm forms neural structures like
Retina
Ciliary body ( not muscles)
Iris - both sphincter and dilator pupillae
Optic nerve
* Neural crest derivatives are
Meninges of optic nerve
Schwann cells
Ciliary ganglion
Ciliary muscles
For the remaining derivatives, watch the following picture.
Thank you.
Dr. Madhuri Reddy.
