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28 Cards in this Set

  • Front
  • Back
Most indicative manifestations of glaucoma:
notching> c/d, asymmetry, disc heme > disc asymmetry
Rizzuti sign
conical light reflection from temporal light source on nasal cornea
POAG risks:
**thin K's**, FmHx, AfAm, age >50, DM, high myopia, RD, CRVO
Acute glaucoma
hydropic degeneration & impaired axonal outflowON edema & hyperemia; prior episodesglaukomfleken & ON pallor & cupping
Pseudoexfoliation (PXF)
age related; build up of abn fibrillar material; 50/50 uni/bilateral; IOPs often higher than COAG; less responsive to meds; Krukenberg spindle; decreased endothelial cell density, pigmented TM, narrow angle, poor dilation, NS, zonular weakness, peripupillary TID, Sampaolesi’s line (pigmented Schwalbe’s line); 20-60% risk of glaucoma; lens extraction=no help
Uveitic glaucoma
1) inflamm debris obstructs angle 2)hyperviscose Aqueous 3)NV 4) uveal effusion 5)papillary block 6) PAS
Increased episcleral venous pressure
Sturge-Weber, Graves, AVF, SVC syndrome
glaucoma secondary to Malignant melanoma
most commonly glaucoma from NVA, esp after radiation; also, TM obstruction by melanin-containing macs, direct tumor extension into TM, angle closure from ant displacement of lens-iris diaphragm or PAS & inflammation
Steroid induced
?secondary to GAGs accumulating in TM
Aqueous misdirection (Malignant)
aqueous is misdirected into vit cavity pushing everything forward; flat AC, moderately high IOP; Risk factors: crowded AC (angle closure, nanophthalmos, older, women, hyperopes), post op inflammationswelling of CB & CP; TX=mydriasis/cycloplegics to pull lens-iris diaphragm posteriorly; in pseudophakes, YAG ant hyaloids; VTX
Pupillary block
shallow AC, mildly inc IOP, peripheral I-K touch; Tx=cyclo, PI, steroids
Post trauma glaucoma
spontaneous closure of cyclodialysis cleft weeks to months after injury results in a chronic hypotonous eye to have extremely high IOP until TM system “wakes up”
Lens particle
post trauma or post op residual cortexmay spontaneously resorb
Phacoanaphylactic
traumaruptured lens capsulegranulomatous inflammation
Phacomorphic
large crystalline lenspupillary blocksecondary angle closure
Phacolytic
mature lens leaksmacs attackobstructs TM; TX=lensectomy
epithelial downgrowth
epi gets to AC following intraocular procedures; Tx=unrewarding; goal=close fistula, excise
glaucoma due to scleral buckles
interfere w/ venous drainage of uveal tract swelling & ant rotation of CBangle closure
Schwartz’s syndrome
open angle glaucoma secondary to RRD as outflow is obstructed by pigment (from RPE), GAGs (from photoreceptors) or photoreceptor outer segments; resolves after RD repair
nanophthalmos
thick scleravenous outflow restrictionuveal effusionsant CB rotationangle closure
involved protruding tissue (ex. Iris) w/ cryo to destroy intraocular epi
UGH
AC IOL chafes irisuveitis, glaucoma, hyphema; tx=lensectomy
Posner Schlossman (glaucomatocyclitic crisis)
20-50; unilateral mild or no discomfort +/- blurry VA w/ profound IOP spike that precedes AC rxn (KP + faint flare & mild ciliary flush w/out iris changes) & last hours to weeks & is self-limited; idiopathic; flat stellate KP in inf ½ of K; +synechiae
Ghost cell
VH + ant hyaloids breakAC candy stripe hyphema
Hemolytic glaucoma
hemoglobin laden macs block TM
Fuch’s HI
like Posner Schlossman but w/ iris hypochromia & white iris nodules
congenital glaucoma
2/3=bilateral, 10%=AR (familial); IOP>21, C/D>0.3 (2.6% normal variant), K diameter > 12.5, open angle w/ ant iris insertion, no other iris abnormality; 5% parental risk w/ future pregnancies & 5% pt passing to kids;
<3mo—presenting symptom=clouding & tearing (eyes typically kept closed)
>3mo—presenting symptom=K enlargement
Prognosis: APD-irreversible; cupping-potentially reversible
secondary myopic shift from globe enlargement;
“Barkan’s membrane” may overlie angle & require incision at time of goniotomy
congenital glaucoma--DDx
***Diff dx: neural crest dysgenesis (aniridia, peteres, axenfeld-rieger), phakomatoses, metabolic d/o (lowes (UA for protein & aminoacids), homocyst, mucopolysacc), inflamm (cong rubella (IgM), HSV), neoplasm (Rb, JXG), X-linked megalocornea, downs, pataus, zellweger, rubinstein-Taybi, PHPV, ROB, trauma, steroid use
Haab’s striae:
horizontal Descemets breaksdue to congenital glaucoma