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KMID : 1011420130180020193
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Journal of Korean Ophthalmic Optics Society
2013 Volume.18 No. 2 p.193 ~ p.196
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Investigation of Instrument for Photostress Recovery Time Test in the Eye
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Kim Sang-Yeob
Moon Byeong-Yeon
Cho Hyun-Gug
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Abstract
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Purpose: This study was investigated to find out a useful instrument instead of direct ophthalmoscope for ocular photostress recovery time (PSRT) test. Methods: The PSRT test was performed using direct ophthalmoscope, trans illuminator, pen light, and camera flash for 48 subjects (average age 22.88 years, 96 eyes) who were corrected to 0.8∼1.2 of visual acuity. Results: Each mean of PSRT measured by direct ophthalmoscope, trans illuminator, pen light, and camera flash was 27.90±18.40 sec, 23.73±12.99 sec, 21.31±15.57 sec, and 18.98±11.64 sec, respectively. The difference of PSRT between the eyes corrected more than 1.0 and the other eyes corrected under 1.0 of visual acuity was not found significantly. And there was no difference between dominant eyes and nondominant eyes of PSRT. Conclusions: Though the nearest instrument to direct ophthalmoscope was trans illuminator, pen light and camera flash could be the useful instruments for PSRT test.
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KEYWORD
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Photostress Recovery Time, Direct ophthalmoscope, Trans illuminator, Pen light, Camera flash
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