BV 12 - alphabet syndromes

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Author:
sookylala
ID:
290532
Filename:
BV 12 - alphabet syndromes
Updated:
2014-12-03 10:00:15
Tags:
alphabet sydnromes
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Description:
alpha
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  1. What are common associations with A and V syndromes?
    • infantile strab
    • Duane's
    • brown's
    • acquired CN4 palsy
    • TED with IR contraction
  2. What are some common complaints of alphabet syndromes?
    • asthenopia
    • diplopia
    • discomfort reading in downgaze
  3. What is characteristic of A sydnrome?
    hoz deviation differs by >10Pd
  4. What is deviation amount of V sydnrome?
    >15pd difference in hoz deviation
  5. Location vs amount of alphabet?
    • magnitude is not important
    • location is- as how px uses their eyes
  6. V pattern ST?
    • underaction of SO
    • downgaze: more eso-> no abduction
    • upgaze: less eso-> normal IO
  7. A pattern?
    IO weakness of overacting SO
  8. Management of alphabet syndromes?
    • surgery: only if excessive fusional demands or cosmesis
    • VT: if some fusional vergence ranges
    • oblique prisms:
  9. Features of DVD?
    • covered eye elevates and extorts- no changes with ab/duction
    • bilateral, asym
    • assoc: IST, latent nystagmus
    • bilateral paresis of depressors
    • tx: surgery
  10. strabismus sursoadductorious?
    • overaction of IO, 2ndy underacting SO: CN3 innervation overflow
    • ADD = ELEVATION
    • LHyp = in R gaze
    • R HYP = in L gaze
    • no vert in primary
    • tx: rule out other causes, surgery

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