강제vergence 주시시차곡선의 유형별 변수 특성

서지정보

· 발행기관 : 대한시과학회
· 수록지 정보 : 대한시과학회지 / 16권 / 4호
· 저자명 : 최선미, 이기영, 박현주

초록

목 적: 본 연구에서는 완전융합제거사위와 주시시차곡선에서 얻어진 3가지 변수(일부융합제거사위를 의미하는 x-intercept, 주시시차를 의미하는 y-intercept, 주시시차 곡선의 기울기)를 구하여 각 변수 간 상관관계를 파악하고, 얻어진 데이터로 각 type별 수평과 수직주시시차를 그려 곡선의 양상을 비교해보고자 하였다. 방 법: 안질환이 없고 교정시력이 1.0 이상인 20~30대 91명을 대상으로 근거리에서 강제vergence 주시시차를 측정하였고, 주시시차는 Wesson fixation disparity card를 이용하였다. 결 과: 근거리 주시시차 곡선의 유형을 조사한 결과 type III>type I>type IV>type II의 순으로 나타났으며, 평균적인 유형별 수평과 수직주시시차곡선도 얻었으나 전형적인 곡선과는 다소 차이가 있었다. 대상자가 너무 적거나, 검사값이 불안정한 type II, type IV을 제외하고 실시한 type I, type III에 대한 기울기, 완전융합제거 사위, 일부융합제거사위, 주시시차와의 상관성을 살펴볼 때, x-intercept인 일부융합제거사위는 완전융합제거사위와는 r=0.692, p=0.00로 가장 상관성이 높았고, y-intercept인 주시시차하고는 r=0.539, p=0.00로 두 번째로 상관성이 높아 근거리 주시시차(y-intercept)와 일부융합제거사위(x-intercept)가 서로 밀접한 상관관계를 가졌다는 것을 보여주었다. 또한 수직주시시차곡선은 수평주시시차곡선보다 매우 가파른데 좁은 융합력 때문으로 사료된다. 결 론: 강제vergence 주시시차곡선을 얻었고, 일부융합제거사위와 완전융합제거사위와, 일부융합제거사 위와 주시시차가 높은 상관성이 있었고, 수직주시시차곡선은 수평주시시차곡선보다 매우 좁은 융합폭을 나타내었다.

영어초록

Purpose: This research was designed to figure out the correlation between 3 variables of dissociated phoria and associated phoria: x-intercept indicating associated phoria, y-intercept indicating fixation disparity and slope of fixation disparity curve, and to figure lateral fixation disparity curve and vertical fixation disparity curve with obtained data. Methods: The 91 subjectives (corrected visual acuity 1.0 or higher)had no eye diseases and their forced vergence fixation disparity was measured at near distance usings Wesson fixation disparity card. Result: Researching the type of near fixation disparity curve results showed that the most common type was type Ⅲ, the second most common type was type Ⅰ, the third most common type was type Ⅳ, and the least common type was type Ⅱ. The smallest group of subjects and unstable type 2 and 4 were excluded from the experiment. Based on the correlation between 1, 3 type of slope, dissociated phoria, associated phoria and fixation disparity, X-intercept (associated phoria) was the most highly correlated with dissociated phoria about r=0.692, p=0.00, the Y-intercept was the second highly correlated with associated phoria about r=0.539, p=0.00. As a result, this research demonstrated that fixation disparity (Y-intercept) measured at near distance had a close correlation with associated phoria, X-intercept. Because vertical fusional area was narrow and vertical fixation disparity curve was more steep than lateral fixation disparity curve. Conclusion: The forced vergence fixation disparity curve was obtained by prism, associated phoria and dissociated phoria, associated phoria and fixation disparity was highly correlated. Vertical fusional area was more narrow than lateral fixation disparity curve.

참고자료

· 없음