BV 5 - Strab Evaluation

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Author:
sookylala
ID:
290415
Filename:
BV 5 - Strab Evaluation
Updated:
2014-12-02 02:34:03
Tags:
strabismus
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Description:
strabismus
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  1. What are the h&s steps for a strabismic evaluation?
    • CC
    • Signs and sx
    • onset
    • OcHx
    • FOHx
    • Parent/px goals
  2. CC?
    • cosmesis
    • school screening
    • Hx of strab/angle
    • 2nd opinion
    • strab discovered
    • change in mag/frequency
    • Discovery of poor acuity
  3. Signs and sx?
    • Head tilt/turn
    • increased blinking or rubbing eyes
    • asthenopia if intermittent
    • diplopia if recent onset
  4. Onset?
    • type - trauma, vascular, pathology
    • gradual
    • intermittent/constant
    • time of onset - photos useful
    • <6-9M old difficult to get functional cure
  5. OcHx?
    • previous tx- interval between onset and tx
    • number/age surgery
    • which eye/muscle operated on
    • post op results
    • patching - eye, schedule, compliancy
  6. FmHx?
    • strab
    • genetic pattern
  7. What are 3 reasons contributing to crowding?
    • 1. Contour interaction: cells response and inhibition
    • 2. Abnormal eye movements: eyes cant fixate properly
    • 3. attentional factors: other letters nearby
  8. When will a neutral density filter decrease VA?
    • amblyope: not by much
    • pathological: by a lot
  9. Adv and disav of psychometric chart?
    • ADV:
    • all rows and equal crowding
    • all letters same size
    • need 5/8 correct (=50% correct) to eliminate 25% guessing

    • Disad:
    • need to know directionality
    • px needs to pay attention
  10. Tests for young children?
    • preferential looking
    • OKN
    • broken wheel test
    • NOT SPECIFICALLY FOR AMBLYOPIA

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