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KMID : 1159320070090030291
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Korean Journal of Vision Science
2007 Volume.9 No. 3 p.291 ~ p.299
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A Study on Heterophoria of College Students in Jeonbuk Province
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Doo Ha-Young
Sim Sang-Hyun
Choi Sun-Mi
Jang Jung-Un
Kim Hyun-Suk
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Abstract
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We did a research about two different methods of measuring horizontal heterophoria and vertical heterophoria which are Von Graefe test and Maddox Rod test. There were two tests used on full correction condition at the long distance. The inspection was done with subjective method of refraction about normal 78 college students aged from 19 to 35 in Jeonbuk Province
The results were as follows ;
1. Using Von Graefe test of horizontal heterophoria Measurement, they were measured 28% for orthophoria, 62% for exophoria and 10% for esophoria at distance.
2. Using Maddox Rod test of horizontal heterophoria Measurement, they were measured 39% for orthophoria, 50% for exophoria and 11% for esophoria at distance.
3. Using Von Graefe test of vertical heterophoria Measurement, they were measured 87% for orthophoria, 13% for vertical heterophoria at distance.
4. Using Maddox Rod test of vertical heterophoria Measurement, they were measured 94% for orthophoria, 6% for vertical heterophoria at distance.
5. Each test average were 1.22ΔBI for Von Graefe test, 1.49ΔBI for Maddox Rod test .
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KEYWORD
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subjective refraction, Von Graefe test, Maddox Rod test, horizontal heterophoria, vertical heterophoria, orthophoria, exophoria, esophoria
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