CAT

Created by

Liz Pham

Cards (50)

Congenital CAT inheritance?
AD
Non-inheritance causes of Congenital CAT?
Down’s galactosemia, and rubella
punctata caerulea — common, innocuous?
Blue Dot Opacities
COngenital CAT: when is surgery urgent? Why?
Dense CAT, prevent amblyopia
Impairment of
galactose-1-phosphate uridyl transferase
What opacity?
oil droplet
Congenital CAT: vision rehab options?
SRX
CL
IOL
Occlusion
ECTOPIA LENTIS - lens displaced
ECTOPIA LENTIS: familial, location?
superotemporal
ECTOPIA LENTIS: homocystinuria, location?
inferonasal
ECTOPIA LENTIS: et Pupillae?
Opposite pupil
Capsule thinnest in posterior pole
Mitotic activity in equatorial zone
ASC associated with fibrous metaplasia of epithelium
N/D: more affected by PSC?
near
age related CAT?
PSC, cortical, nuclear
CAT alters color vision?
Nuclear
Myopia shift due to refractive index and spherical aberration
Which CAT hard consistency?
Nuclear
Which CAT starts as clefts/vacuoles?
Cortical
CAT Black on retro?
PSC
Partially opaque CAT?
immature
shrunken and wrinkled capsule + leakage?
hypermature
Liquidation of corTex + sinking?
Morgagnian
System for grading CAT maturity?
LOCS
Corical is graded by sectors
Nuclear is graded by color
PSC is graded by density
Most common cause of secondary CAT is chronic anterior uveitis
CAT: TRUE exfoliation due to infrared radiation
Which GLCs warrant medical indication for SX?
Phacolytic and phacomorphic
Testing VA through CAT with contrast sensitivity charts, LogMAR, and brightness acuity testing
How to calculate IOL power?
Biometry
Wide arcus sinilis can obstruct surgical view
Most common method of anesthesia is peribulbar
Lanosteral: pharmacological reversal of CAT
RE of post-op ICCE: high hyperope
ICCE —> risk for RD bc loss of zonule tension
“can opener” capsulotomy — ECCE
Phaco: chop nucleus and remove via vacuum
Viscoelastic: High molecular weight cohesive to push iris and vitreous away from lens