docsrinu
Forum Elite
Topics: 26
Posts: 213
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A newborn has strabismus. Which of the following is the rationale for surgically correcting this problem during early childhood?
A. Cataract formation is more likely in misaligned eyes
B. Neither eye will develop normal monocular vision
C. Normal binocular vision will not develop
D. Retinal ganglion cells in the temporal hemiretinas will degenerate
E. Separate representations of each retina will develop on the visual cortex
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| vanshita
Forum Guru
Topics: 25
Posts: 838
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C?
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| khorshid
Forum Guru
Topics: 32
Posts: 591
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C
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| Dr.Papez
Forum Senior
Topics: 0
Posts: 152
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C.
The areas in visual cortex will become non fucntional if no visual input from the eye. In strabismus often one eye fixes and other doesn't. The input from the eye is a stimulus for organisation of ocular columns. In ther absence, they are not organised. Also any correction of infantile cataract should be done early unlike in adults.
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| fox
Forum Guru
Topics: 70
Posts: 727
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I agree with the reason proposed by papez but that doesnt seem to go well with the choice indicated. Im kind of divided between D & E.
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| Dr.Papez
Forum Senior
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D- degeneration doesnt appear to be right.
E- I dont understand the choice
I still go with C
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| Musuq
Forum Guru
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Posts: 425
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E)
http://www.valuemd.com/anatomy/102186-nbme-q-stra...
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| pedmed
Forum Newbie
Topics: 1
Posts: 2
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I am a certified pediatrician in my country, explanation given by Dr. Papez is the correct one, belive me .
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