12 - diseases of the optic nerve

Question 1

(optic nerve hypoplasia)

1. congenital malformation of the optic nerve

Question 2

what is papilledema?

Answer 2

edema of the optic papilla

Question 3

optic neuritis or papillitis

1. animal presents with what?

Answer 3

1. no PLRs and blindness of the affected eyes

Question 4

optic atrophy

1. results from what 4 things?

Answer 4

1. postinflammatory disease, glaucoma, trauma or proptosis, post-papilledema

Question 5

1. what is a coloboma?

Answer 5

1. pits of the optic disc caused by incomplete closure of the embryonic fissure