Prescription AnalysisQuestion 47 of 100
Prism prescribed as '2 base out' in each eye is used to help with what?
a.Vertical alignment
b.Convergence or divergence problems (horizontal)
c.Reading add
d.Color vision
Explanation
Base out and base in prism address horizontal deviations of the eyes, aiding fusion for esophoria or exophoria. Vertical deviations use base up or base down prism.
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