Ocular embryology

Which structures are derived from the optic cup?

• Neural retina

• Iris epithelium

• Pigment layer of retina

• All of the above

The optic nerve is derived from _________.

• neural crest

• mesenchyme

• ectoderm

• mesoderm

________ is derived from mesoderm.

• Superior oblique muscle

• Optic nerve

• Retina

• Iris epithelium

Failure of cranial neural crest cells to migrate and/or differentiate appropriately could lead to __________ abnormalities

• choroid

• cornea

• lens

• neural retina

The development of optic primordium (primitive streak) in neural folds is the first event of ocular embryogenesis.

• TRUE

• FALSE

The retinal vessel reach periphery as early as three months of gestation.

• TRUE

• FALSE

Draw the cross-section of the neural tube at 3rd week of embryogenesis; that shows the presence of neural plate, mesoderm/somite, and neural crest.