Journal of Digital Convergence (디지털융복합연구)

The Society of Digital Policy and Management (한국디지털정책학회)
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Possibility about evaluation test of Substitution of NPC Alteration for AC/A Ratio

폭주근점 변화의 AC/A비 대체 평가지표에 대한 가능성

  • Yoo, Hyun (Dept. of Health Science, Graduate School of Health Science, Far East University) ;
  • Lee, Eun-Hee (Dept. of Health Science, Graduate School of Health Science, Far East University)
  • 유현 (극동대학교 보건과학대학원 보건과학과) ;
  • 이은희 (극동대학교 보건과학대학원 보건과학과)
  • Received : 2016.08.24
  • Accepted : 2016.10.20
  • Published : 2016.10.28
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Abstract

This study aimed to evaluate the possibility for assessment of binocular visual function about alteration for near point of convergence (NPC). Study subjects were total 30 (emmetropia 16, myopia 14), who had no eye disease except for the phoria and monocular corrected vision 1.0 and over. Near point of accommodation (NPA), NPC and phoria test were measured both at ordinary and stimulation of +1D. Ordinary NPC was 1.77cm shorter than NPC stimulated +1D and the NPC of emmetropia was shorter than that of myopia. The difference between NPC stimulated +1D and ordinary were increased in the emmetropia. As the NPC increased, the AC/A ratio was elevated and the feature of near exophoria appeared. The results suggested that the alteration of NPC might substitute AC/A ratio for reference variable of binocular vision. If converged and analyzed comparatively with another binocular visual evaluation test, the alteration of NPC could be developed for substitution of evaluation test.

본 연구에서는 폭주근점 변화를 통해 양안시 기능 평가의 가능성을 확인하고자 하였다. 연구대상자는 사위를 제외한 안질환이 없고 단안교정 소수 시력 1.0 이상인 30명(정시 16명, 근시 14명)이었다. 조절근점과 폭주근점, 사위검사는 평상시와 +1D의 자극 시에 측정하였다. 대상자의 폭주근점은 +1D의 자극 시 폭주근점보다 1.77cm 작게 나타났고, 근시보다 정시에서 폭주근점이 작게 나타났다. 정시 대상자에서 폭주근점과 +1D의 자극 시 폭주근점의 차이는 증가하였다. 폭주근점이 커질수록 근거리 외사위에 가까워졌으며, AC/A비는 크게 나타났다. 연구결과는 폭주근점 변화가 양안시의 참조변수인 AC/A비를 대체할 수 있는 것을 보여주었다. 다른 양안시 기능 평가 검사들과 융합하고 비교분석한다면, NPC 변화는 대체 평가지표로써 개발될 수 있을 것이다.

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