glaucoma Flashcards
1
Q
normal IOP?
A
10-21 mmHg
2
Q
define glaucoma
A
GROUP of diseases characterized by:
progressive NARROWING of visual field SECONDARY to retinal ganglion cell death
3
Q
risk factors linked to glaucoma?
A
elevated IOP, progressive optic nerve head cupping
4
Q
how do u diagnose glaucoma?
why is it hard to Dx?
A
disease of EXCLUSION (rule out other possibilities)
- tonometry-mythological “glaucoma test”
- differential Dx: visual field loss
- genetics
- epidemiology
hard of Dx..
pt can lose 80-90% peripheral vision & still see fine
*no functional changes!
5
Q
can someone with low IOP have glaucoma?
high IOP?
A
someone w/ low IOP can have glaucoma
someone w/ HIGH IOP can NOT have glaucoma
6
Q
glaucoma leading cause of blindness in what races?
A
african americans & hispanic americans
