Glaucoma Flashcards
1
Q
ganglion cells
A
last cells that leave eye
- photoreceptors converge on ganglion cells
2
Q
anterior chamber angle
A
where iris and cornea meet
3
Q
glaucoma
A
associated with eye pressure
- fluid constantly made in ciliary body (no feedback mechanism to regulate; if too much made, pressure builds up and presses on optic nerve)
- blood supply cannot get to cells
- bundle of cells dies, everything after dies
4
Q
cupping
A
lamina is bowed back and mechanically deformed permanently
5
Q
average IOP
A
15 mmHg +/- 1.50
high pressure = ocular hypertension
normal range = normotensive glaucoma
6
Q
highest risk
A
age
7
Q
chronic angle closure
A
iris tissue rolls up when pupil dilates
- pressure increases in dim light
- no pain receptors in inner eye so not felt
8
Q
open angle glaucoma
A
most at risk = African/Caribbean ancestry
- no signs/symptoms
treatment
- eye drops
- pills
- injections
- laser/surgery
9
Q
acute angle glaucoma
A
- pressure on cornea
- feels pain/red
- steamy, fuzzy cornea
