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Examines how frame shape influences prismatic power in eye protectors, suggesting important design considerations.
The effect of frame shape on prismatic power of eye‐protectors has been shown by computation. The calculated values have been compared, for seven eye‐protectors, with the value measurements by a testing method reproducing the normal conditions under which they will be worn by users. The prismatic power is, besides, measured for several points of the visual field, and for varying interpupillary distance of the users.
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Dupuy et al. (1974) studied this question.
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