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Observational study demonstrates prismatic correction provides cosmetic improvement and binocular fusion in a patient with progressive hypertropia.
A patient was followed for a 17‐year period during which time a noncomitant vertical deviation increased markedly. Acceptable cosmesis (illustrated by photographs) and binocular fusion were provided with a series of prismatic corrections, the final one amounting to 20Δ in the major lens and 28Δ through the bifocal segment.
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Arthur B. Emmes (1968) studied this question.
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