초록
목적: 조절능력의 변화가 빈번하게 발생되는 35세 이상 50세 미만을 대상으로 l차시기(08:00~10:00), 2차시기(13:00~15:00), 3차시기(18:00~20:00에 걸쳐 조정기능의 변화를 알아보고자 하였다. 방법: 104명의 피검사자를 비노안과 초기노안으로 분류하여 조절력과 조절용이성, 상대조절력을 검사하였다. 결과: 좌우안과 양안의 조절력을 비노안과 초기노안 모두 2차시기가 가장 높게 나타났으며, 초기노안용 일일변화에 유의성을 보였다. 조절용이성에서 비노안용 3차시기가, 초기노안용 2차시기가 가장 높았고, 변화에 대한 유의성이 모두 있는 것으로 나타났다. 허성상대 조절에 대한 일일변화에서 비노안, 초기노안 모두 l차시기가 가장 높았으며, 실성상대조절용 비노안, 초기노안 모두 2차시기가 가장 높았다. 결론: 초기노안에서 허성상대조절을 제외한 조절력, 조절용이성, 실성상대조절은 2차시기가 가장 높았다.
Purpose: The purpose of this study was to examine diurnal variation of accommodation on people whose age are between 35 and 50 years old with frequent alternation of accommodation at period 1 (8:00-10:00), period 2(13:00-15:00) and period 3 (18:00-20:00). Methods: All \04 subjects were separated to nonpresbyopia and incipient presbyopia. Tests were done for amplitude of accommodation, accommodative facility and relative amplitude of accommodation. Results: Both nonpresbyopia and incipient presbyopia had the highest amplitude of accommodation in oculus dexter, oculus sinister and oculus uterque at period 2. In addition, the incipient presbyopia showed the statistical significance of daily change. The nonpresbyopia had the most accommodative facility at period 3 and incipient presbyopia had the most accommodative facility at period 2. Their daily variations were statistically significant. Both nonpresbyopia and incipient presbyopia had the most negative relative accommodation of daily change at period I. Both of them had the most positive relative accommodation at period 2. Conclusions: The incipient presbyopia had the highest amplitude of accommodation, accommodative facility. and positive relative accommodation (except the negative relative accommodation) at period 2.