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A Study Of Slow Vergence Adaptation Using Forced Vergence Fixation Disparity Curves.

Show simple item record Foust, Delbert Tolen, Kathleen 2014-02-20T21:32:29Z 2014-02-20T21:32:29Z 1983-04-19
dc.description This paper is submitted in partial fulfillment of the requirements for the degree of Doctor of Optometry. 27 pages. en_US
dc.description.abstract There i s a general belief tha t the slope of thestandard forced-vergence fixation disparity curve is an indication of patient comfort, with the steeper curves more often associated with a asthenopia: When fixation disparity measurements are taken, it usually takes at least 15 seconds to generate each point on the curve. The works of Carter and Schor have suggested that this is enough time for a slow prism adapt ion cycle to be set in motion. . It therefore seems likely that per0on s with e~f icient prism adap t a tion mechanisms will produce flatter fixation disparity curves . Indeed, Schor) did find a high correlation between efficient slow vergence adaptation to small amounts of fixation disparity . A difference between the slopes of the prism induced fixation disparity curves before and after slow prism adaptation has been initiated should be easy to demonstrate . The amount of the difference between the two curves should be related to the efficiency of the patient 's slow vergence adaptation mechanism. en_US
dc.language.iso en_US en_US
dc.relation.ispartofseries UA 29;
dc.subject Vergence en_US
dc.subject Fixation disparity en_US
dc.title A Study Of Slow Vergence Adaptation Using Forced Vergence Fixation Disparity Curves. en_US
dc.type Thesis en_US

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