Eye Histology and Physiology - Heck

Question 1

layers of cornea

Answer 1

outer epithelium
bowmans membrane
substantia propria
descemets membrane
corneal endothelium

Question 2

outer epithelium of cornea

Answer 2

has stem cels

Question 3

nearsighted

Answer 3

myopia

focuses in front of retina

lens too powerful

Question 4

farsighted

Answer 4

hyperopia

focus behind retina

lens too weak

Question 5

astigmatism

Answer 5

abnormal topography of cornea

Question 6

aqueous humor production

Answer 6

ciliary body

Question 7

close vision

Answer 7

ciliary contract
release tension on suspensory ligaments
rounder lens

Question 8

corneal-irideal angle

Answer 8

this is what is relevant for glaucoma

Question 9

aqueous humor flow

Answer 9

posterior chamber > anterior chamber

trabecular meshwork to canal of schlemm

Question 10

glaucoma path

Answer 10

elevated IOP

CN II issues

Question 11

separate retina from choroid

Answer 11

retinal pigment epithelium

Question 12

photopigment siglaning

Answer 12

light - 11-cis retinal to 11-trans retinal

hyperpolarization occurs - cell stops releasing NT

Question 13

blue, green, red receptor

Answer 13

cones

Question 14

retinal blood supply

Answer 14

choroid - outer retina

central retinal artery - inner retina

Question 15

retinal detachment

Answer 15

detachment of photoreceptor layer from pigment epithelial layer

can lead to blindness

Question 16

diabetic retinopathy

Answer 16

with diabetes

proliferative

if see neovascularization