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Missed glaucoma questions
Terms in this set (16)
What are the 3 types of retinal ganglion cells?
-M (magnocellular): sense Motion vision; have large diameter axons; have large perceptive field; sensitive to light in scotopic conditions
-P (parvocellular): small diameter; small perceptive field; concentrated in macula; give color and fine-detail vision; account for 80% of all retinal ganglion cells
-koniocellular: sense blue-yellow color; preferentially activated by SWAP (short wavelength automated perimetry)
If you suspect epithelial or stromal downgrowth causing iris distortion and closure of the angle, what is one way to test this theory?
-use an argon laser to see if it makes characteristic white spots on membrane on the iris
_____ and ______ are both prostaglandin analogs that are prodrugs and require _______ to work.
For HVF, a pupil diameter < ____mm will start to give generalized depression.
What is the classic age and refractive error for a patient with pigmentary glaucoma? what are they at risk for in the retina? iris findings?
-diffuse peripheral transillumination defects
What are the 4 glaucoma syndromes that have a gene association? what are the genes?
-Axenfeld-Reiger: PITX2 or FOXC1
-Juvenile-onset: GLC1A (aka TIGR/MYOC)
____% of pts who have laser trabeculoplasty will have IOP lowering for minimum 6-12 mo. LTP is effective in ___% at 10 yrs.
What are associated systemic manifestations of Axenfeld-Reiger?
-redundant umbilical skin
also.......cardiac, limb, pituitary, hearing loss, mental
What is the only general anesthetic that increases IOP?
What is the most common side effect of brimonidine in adults? what class is it? in what population is it contraindicated and why?
-young kids ----CNS depression, hypotension, seizures
What effect do topical beta-blockers have on cholesterol levels?
-no other levels are significantly changed
How many days (range) after a hyphema is the highest risk for high IOP?
3-7 days (associated with rebleeding)
What illicit drug is associated with high IOP?
Why would an old hyperope be more like to have PACG than a younger hyperope?
as people age the AC depth decreases
What is the most typical presentation for primary congenital glaucoma?
baby boy in the 1st year of life with bilateral glaucoma
-usually not dx'd at birth but a little later
-2/3 are bilateral
What is the mechanism for glaucoma in pts with Sturge-Weber? does age matter?
-pts<10y/o: AC angle malformation
-pts>10y/o at the time glaucoma develops: increased episcleral venous pressure
THIS SET IS OFTEN IN FOLDERS WITH...
High Yield OKAPs
Neuro-Ophthalmology: 4. Classification and Managem…
Retina: 1. Basic Anatomy
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