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Opt 725 Amblypia Exam 1
Dr London Intro Lecture
9
Medical
Graduate
10/02/2012

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Term
Does the following describe stabismus or amblyopia?

"The condition in which binocular fixation is not present under normal seeing conditions"
Definition
Strabismus
Term
What are the three big components to amblyopia?
Definition
1. Reduced (typically monocular) VAs
2. The reduced VAs are not correctable via refraction
3. The reduced VAs cannot be attributed to other obvious structural or pathological ocular anomalies***
Term
Why might the incidence of amblyopia be less than the incidence of strabismus?
Definition
An intermittent, alternating, or late-onset strab may not be amblyopic. (Conversely, a refractive amblyope may not necessarily be strabismic.)
Term
Prior to age 45, amblyopia causes more vision loss than all _________ and _________ combined. Why is this especially tragic?
Definition
disease; trauma

Because amblyopia is preventable and treatable. *
Term
How many times more likely are amblyopes at risk to go blind? (ie. both eyes are now unseeing)
Definition
Amblyopes carry a 17x increased risk of total blindness.
Term
A 20/200 amblyope wants to know what her odds of being cured would be if she were to undergo therapy. Because you have Dr. London's notes memorized, you tell her that 60-85% of amblyopes reach 20/____ VAs following treatment.
Definition
60-85% of amblyopes reach 20/40 (or better!) VAs following treatment
Term
What is considered "successful" amblyopia treatment?
Definition
An improvement of 2 lines.
Term
Age appears to have a _______ effect on the final outcome for amblyopia therapy.
A. massive
B. substantial
C. fair
D. limited
Definition
D. limited

Age appears to have a limited effect on the final outcome of amblyopia therapy.
Term
What kind of strabs may actually end up losing a bit of peripheral vision?
Definition
X(T)s. (ie. the chameleons)
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