Eye Flashcards
most common primary tumor of the eye
vascular tumor
lipogranuloma of the eye
chalazion
mimic chalazion but can metastasize
sebaceous carcinoma
[diagnosis]
redness, itching, heal without scarring
conjunctivitis
redness, itching, heal WITH scarring
trachoma
most common site of conjunctival neoplasm
limbus
blue sclerae in scleral ecctasia is due to?
increased IP
the main refractive surface of the eye
cornea
HSV causes keratitis by causing granulomatous reaction in the ___
descemet membrane
distorted perception of blue color due to browning of lens is due to the deposition of ____
urochrome
[glaucoma]
increase resistance to aqueous outflow via trabecular meshwork
chronic process
open-angle
[glaucoma]
peripheral zone of the iris adheres to the trabecular meshwork
acute process
angle closure
[glaucoma]
changes in optic nerve and visual field without increase in IOP
chronic process
normal pressure
___ refers to minute anterior subcapsular opacities
glaukomflecken
___ uveal tissue lining the ectatic sclera
staphyloma
inflammation within the vitreous humor
endophthalmitis
inflammation of the retina, uvea, sclera, orbit
panophtalmitis
inflammation of the iris, cilary body, choroid
uveitis
most common first evidence of metastasis of uveal melanoma
lover
[retinal detachment]
unclean vitreous detachment tears the retina;
liquefied vitreous accumulates between RPE and neurosensory retina
rhegmatogenous
[retinal detachment]
any condition that damages the RPE and permits fluid to leak from the choroidal circulation under the retina
non-rhegmatogenouos
[retinopathy]
Presence of focal choroidal infarcts (elschnig pearls)
hypertensive retinopathy
[retinopathy]
presence of copper of silver wiring
hypertensive retinopathy
[retinopathy]
cotton wool spots
hypertensive retinomaty
[retinopathy]
visual loss, retinal detachment, neovascular glaucoma, macular edema
cotton wool exudates
Nonproliferative diabetic retinopathy
[retinopathy]
presence of neovascularization
visual loss, retinal detachment, neovascular glaucoma, macular edema
proliferative diabetic retinopathy
[vascular occlusion syndromes]
occurs in ischemia, hollenhorst plaques or fragments of atherosclerotic plaque
cherry-red spot in macula with retinal pallor
true emergency
CRAO
[vascular occlusion syndromes]
may occur with or without ischemia
retinal hemorrhages, dilated tortous retinal veins, cotton-wool spots, macular edema, optic disc edema
CRVO
[diagnosis]
disturbance in the unit that maintains photoreceptor integrity (RPE, bruch membrane, choriocapillaris)
age-related macular degeneration
[diagnosis]
apoptosis of rods and cones
waxy pallor of the optic disc
accumulation of retinal pigment around blood vessels
retinitis pigmentosa
apoptosis of this causes nyctalopia
rods
apoptosis of this cause visual acuity impairment
cones
most common primary intraocular emergency in children
retinoblastoma
[diagnosis]
leukocoria, small, round, blue cells
flexner-Wintersteiner rosettes
retinoblastoma
___ are tumor cells encircling a central lumen (photoreceptor differentiation)
Flexner-Wintersteiner rosettes
most common type of retinal lymphoma
diffuse large B cell lymphoma
retinal lymphoma involves which part of the eye
RPE and neurosensory retina
unilateral optic nerve swelling suggests
nerve compression
loss of visoin secondary to demyelination of the optic nerve
optic neuritis
most common primary optic nerve tumors
pilocytic astrocytoma and meningiomas
End stage eye disease
pthisis bulbi
[diagnosis]
atrophic eye with internal disorganization
ciliochoroidal effusion, cyclitic membrane, osseus metaplasia, hypotony
pthisis bulbi
