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Thesis

A relative convergence home training device

1 January 1954

Abstract

To design an instrument with a battery of cards which is suitable for home training or relative convergence function. The instrument should incorporate features of the card and string, physiological diplopia devices, and the ortho fusoro It should retain simplicity and minimum cost. It should have a wide performance range to allow the poor performer a starting point and the good performer room for improvement.


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