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Abstract

Several studies are exploring the possibility that people who are already nearsighted, have unusually high levels of aberration or show greater adaptive delays. The main aim of this project is to calculate accommodation & its effect on hypermetropic & myopic subjects Were had been 80 cases in a normal state but of her cases, 34 were myopic and hypermetropic when examination found differences between the amount of accommodation in hypermetropic and myopic. In myopic, the patients were very comfortable because have a high degree of accommodation, but in hypermetropic the patients had a low amount of accommodation because it has little accommodation and cannot uses at the high degree when we examine the accommodation amplitude.

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