Congenital and Development Anomalies

Question 1

anophthalmos

Answer 1

bilateral absence of the eye 2/2 failure of primary optic vesicle to form

Question 2

crytophthalmos

Answer 2

failure of differentiation of lid and anterior eye structures
absence of eyebrow, palpebral fissure, eyelashes, and conj
severe ocular defects

Question 3

microphthalmos

Answer 3

small, disorganized eye
problem after budding of the optic vesicle
unilateral

Question 4

microphthalmos with cyst

Answer 4

failure of embryonic fissure to close
blue mass of the lower lid
associated with congenital rubella, toxo, vit A def, trisomy 13, trisomy 15, chr 18 deletion

Question 5

nanophthalmos

Answer 5

normal features in small eye
hyperopia, angle closure glaucoma
increased risk of choroidal effusion during intraocular surgery

Question 6

4 components if Lockwoods ligament

Answer 6

Sheath of inferior rectus, inferior tarsus muscle check ligaments of medial and lateral muscles