Purpose : To evaluate visual acuity(V A) according to Jight transmissi on of tinted Jenses. Methods : 37 college students in Daegu and Kyungbuk province(24 males, 13 females, a mean age of 22.8±2.0 yrs.) were seJected. AJJ of them had corrected visuaJ acuity of 0.8 or better, no anisometropia of 2.000 or more, no ocuJar and systemic diseases. Gray, brown, red, green, yellow, bJue, pink lenses are tinted in accordance with BS EN 1836(1997) so that Juminous transmittance of the lenses classified 80-90%(0 category), 60-80%(1-1 category), 43-60(1-2 category), 30- 43%(2-1 category), 18-30%(2-2 category). VA was measured with Han's visual acuity churt. Results : ln wearing tinted lens, the VA decreased. the photopic condition at distance, VA with all the tinted Jens decreased except 0 category Jenses of brown, yellow, blue tint and 1-2 category Jens of yellow tint. ln mesopic condition at distance, V A with all tinted Jenses decreased except 0 category Jens of gray tint. ln the photopic condition at near. V A with alJ tinted Jens decreased. In mesopic condition at near distance, VA with alJ tinted Jenses decreased except 0 category Jenses of green and pink tint. ln the photopic condition at distance. the measured corrected VA with all tinted Jenses excepts 2-2 category of gray tinted Jens was 0.8 or better. ln the mesopic condition at distance. the measured corrected VA with all tinted Jenses was Jess than 0.8. ln the photopic condition at near. the measured corrected VA with 2-2 category Jens of gray tint was 0.8 or better. ln the mesopic condition at near, 1-1 category Jens of bJue tint were measured corrected visual acuity Jess than 0.8. 1-2 category of alJ tinted lenses were measured con·ected visual acuity Jess than 0.8. Conclusions : VisuaJ acuity according to color and light transmittance of tinted lenses was different. When choosing tinted lenses, the decreased leveJ of visuaJ acuity needs to be considered.

• 이선행
• 조현국
• 문병연
• 김상엽
• 이명하
• 마기중