굴절이상 교정상태에 따른 동적시력 변화 = Changes in KVA Resulting from Correction Condition of Refractive Error

다국어 초록 (Multilingual Abstract)

Purpose: This study are to analyze and to compare between pupillary size, reaction time, refractive error,corrected vision, dominant eye, static visual angle (SVA) and kinetic visual acuity (KVA) of male and femalecollege students, to measure KVA of them in full correction and to identify changes of KVA by +0.50 D and−0.50 D spherical power addition respectively in full correction condition. Methods: KVA, SVA, pupillary size,reaction time, refractive error, corrected vision and dominant eye of 40 male and 40 female optical sciencestudents were measured by utilizing KOWA AS-4A, reaction time measurement program, subjective refractometer, andobjective refractometer, and KVAs were measured when +0.50 D/−0.50 D were added in both eyes respectively.
Results: Binocular KVA of whole subjects was 0.45±0.22, and in monocular KVAs were 0.36±0.19 for righteye and 0.34±0.19 for left eye, and binocular KVA was significantly higher than monocular KVA. It appearedthat the better SVA was, the better KVA was in significant way, and in terms of refractive error the less myopiaamount was, the better KVA was, but it was not significant statistically. The lower astigmatism was, the slightlyand significantly higher KVA was when dividing between equal or less than −1.00 D astigmatism group and over−1.00 D astigmatism group. In resulting from correction condition of refractive error KVAs were 0.45±0.22 forfull correction, 0.26±0.15 for +0.50 D addition, 0.48±0.22 for −0.50 D addition which indicates that KVA inover myopia correction was significantly the highest and followed by full correction and under correction. Similarfindings were revealed in both male and female, and KVA of male was better than female in comparing betweenmale and female. There was no significantly different KVA between dominant eye and non-dominant eye.
Conclusions: Accordingly, it is concluded that KVA is related with far distance SVA, astigmatism amount, andrefractive error amount except a dominant eye. Through this research, it was found that prescription for enhancingKVA is to make full correction or to overcorrect slightly myopia.

국문 초록 (Abstract)

목적: 남녀 대학생의 동공크기, 손의 반응력, 굴절이상, 교정시력, 우위안, 정지시각(static visual angle, SVA), 동적시력(kinetic visual acuity, KVA)등을 비교 분석하고, 굴절이상이 완전교정 된 상태에서 남녀 대학생의 KVA를 측정하고, 완전교정상태에 구면굴절력 ±0.50 D를 각각 변화시켜 KVA을 측정하여 변화를 알아보고자 하였다. 방법:안경광학과 남학생 40명, 여학생 40명을 대상으로 KVA 측정장치(KOWA AS-4A)와 손의 반응력 측정 프로그램,자·타각적 굴절검사기기 등을 이용하여 KVA, SVA, 동공크기, 손의 반응력, 굴절이상, 교정시력, 우위안 등을 측정하였고, 양안 구면굴절력을 ±0.50 D 변화시켜 KVA를 측정하였다. 결과: 전체 대상자의 양안 KVA는 0.45±0.22이고, 단안은 우안 0.36±0.19, 좌안 0.34±0.19로 양안이 단안보다 유의하게 높게 나타났다. SVA가 좋을수록 KVA 가 유의하게 좋은 것으로 나타났으며, 굴절이상은 근시량이 작을수록 KVA가 좋았으나 통계적으로 유의하지 않았다. 난시에서는 −1.00 D 이하와 초과로 나눌 때 난시가 작을수록 KVA가 유의하게 좋았다. 굴절이상 교정상태에 따른 KVA는 완전교정일 때 0.45±0.22, 완전교정에 +0.50 D 추가할 때 0.26±0.15, 완전교정에 −0.50 D 추가할 때0.48±0.22로 근시 교정을 강하게 할 때가 유의수준에서 KVA가 가장 높게 나타났으며, 다음으로 완전교정, 근시 저교정의 순으로 낮게 나타났다. 또한 남녀로 구별하여 비교해 볼 때도 유사한 결과를 나타냈으며 남자가 여자보다KVA가 좋은 것으로 나타났다. KVA와 우위안 비우위안 차이는 없었다. 결론: 따라서, KVA는 원거리 SVA, 난시량,굴절이상량과 관계가 있는 것을 알 수 있었으며, 우위안과는 관계가 없었다. KVA를 높이는 굴절이상 처방은 완전교정 또는 근시방향에서 약간 과교정 하는 것이 효과적인 것을 알 수 있었다.

참고문헌 (Reference)

• 1 이민아, "안경렌즈 색상에 따른 동체 시력의 변화" 한국안광학회 16 (16): 7-11, 2011
• 2 심문식, "대학생의 동적시력에 관한 연구" 한국안광학회 17 (17): 419-424, 2012
• 3 Junko U, "Visual function of the junior soccer athletes" 4 (4): 17-24, 2007
• 4 Yoshimitsu K, "Training effects of visual function on college baseball players" 1 (1): 15-23, 2004
• 5 Hiromi M, "The characteristics of kinetic vision in women’s table tennis players" 2 (2): 26-37, 2010
• 6 Won CH, "Sport vision training" Daehakselim 23-24, 1993
• 7 Lee DH, "Optical design of on inspection apparatus for dynamic visual acuity" 9 (9): 473-480, 2004
• 8 Yoshimitsu K, "Kinetic visual acuity and reaction time in male college students" 4 (4): 25-30, 2007
• 9 Kakiyama T, "Effects of the correction of visual acuity on kinetic visual acuity(KVA)in high school rugby players" 53 (53): 255-262, 2004
• 10 Ahn BC., "Dynamic and kinetic visual acuity of athletes and nonathletes" 16 (16): 238-244, 1998
• 11 Ishigaki H, "Differences in dynamic visual acuity between athletes and nonathletes" 77 (77): 835-839, 1993
• 12 Yoshimitsu K, "Development and gender differences in dynamic and kinetic visual acuities in children from 8 to 17 years of age" 6 (6): 128-134, 2008
• 13 Yi MH, "A study on the measurement of dynamic visual acuity for visual acuity chart size" 7 (7): 129-133, 2005
• 14 Mochizuki S, "A study of kinetic visual acuity and refraction in athletes" 26 (26): 25-30, 1998
• 15 Kim HR, "A study DVA changes on free-form progressive lens and single vision lens" 2 : 87-, 2013
• 16 Rouse MW, "A comparison study of dynamic visual acuity between athletes and nonathletes" 59 (59): 946-950, 1988