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15 Cards in this Set
- Front
- Back
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ASC associated with?
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Alport's, trauma
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PSC associated with?
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Steroids, DM-2
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Oil droplet cataract assoc w/?
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Galactosemia. Def: outpouching of nuclear material through post capsule weak spot. Seen as oil droplet on transillumination.
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Type of cataract seen in Down syndrome?
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Cerulean (bluish deposits cortically, usually no sx), also seen in puberty
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POW #1 CE w/ whitish membrane over iris. Dx and Tx?
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Epithelial down-growth. Dx: argon will turn this sheet white, will darken iris (map out sheet).
Tx: ASAP OR for removal. Will get glc from PAS and endos clogging TM, likely will req. trab |
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What is pictured? Pathophys/stats? Tx?
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PCO: lens epithelial cells migrate across PC w/ contraction of secreted collagen matrix.
28% visually-significant PCO at 5-yr post-CE (BCSC) Tx: YAG capsulotomy Incidence: acrylic (lowest) < silicone < PMMA |
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What is pictured? pathophys?
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Eischnig pearls, aka "soap bubbles," "fish eggs." When PCO clusters into large spherical aggregates.
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What is pictured? Association(s)?
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Soemmering ring: epithelial prolif btw ant and post capsules, seen in CE/aphakia, congenital aphakia.
Assoc: Lowe syndrome (eye/neuro/renal), Hallerman-Streiff (bird facies + cataract) |
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Mgmt of chronic endophthalmitis post-CE. Org?
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Org: P. acnes. Can see hypopyon, PCO-like stuff, ant vitritis, mutton-fat (gran) KPs
Tx: try intracam vanco (usually fails). If no response, AV+partial vs. total capsular bag, IOL removal may be required. |
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Define:
1. chatter 2. stroke (length) 3. cavitation 4. duty cycle |
1. chatter: phaco repels lens pieces from tip (-)
2. stroke: distance phaco tip travels (usually 2-4mm) 3. cavitation: formation of bubbles at tip causing lens breakdown 4. duty cycle: % of time of set time period phaco is on |
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Type of cataract? Complication?
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Morgagnian cataract. Can cause phacolytic glc.
Cerulean: bluish (Down or A/D congenital types) Hypermature: white/liquified cortex (phacolytic) Intumescent: fattens, phacogenic glc |
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What is thickness of ant vs. post capsules? Lyte composition w/in lens? Which lens cells are newest?
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Ant= 12-21 u
Post= 2-9 u Newest: cortex/periph Lens is apical-in epithelial cells, so Na-K ATPase pumps K, Ca inside (and NaCl out, like inside of a cell). |
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28yo h/o atopic dermatitis c/o reduced VA. Type of cataract?
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ASC (up to 25% in 20s-30s). Also: PSC but much less so.
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2-lens combo most likely to create interlenticular membrane (ex: high hyper or >36D lens system)?
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2 acrylic lenses in the capsular bag.
Options: 2 silicone lenses in bag, 1 sulcus/1 bag, etc (all better options) |
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Dx? Associated s/s (systemic & ocular)?
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Christmas-tree cataract in myotonic dystrophy.
A/D Systemic: balding, infertility, slow mm release, cardiac conduction delays Ocular: ptosis, pig ret, CPEO-like EOM weakness, hypotony (type I myotonic) |
