노안보정용 안경 착용이 연령관련 원시화와 근용가입도 변화에 미치는 영향 = Effects of Wearing Corrective Glasses for Presbyopia on Age-related Hyperopic Shifts and Reading Addition

다국어 초록 (Multilingual Abstract)

Purpose: This study was conducted to investigate the changes in distance refractive power and reading addition that occur after wearing corrective glasses for prebyopia. Methods: The subjects aged 42 to 75 years who had no ophthalmologic diseases and did not undergo cataract or retina surgery, had a corrected visual acuity of 20/20 and did not have a previous history of wearing corrective glasses for presbyopia. These subjects were divided into 3 groups: the control, reading spectacles and multifocals wearing group and they were measured for distance refractive power and reading addition at their visit. The maximum follow-up period was 73 months. Results: As for distance refractive power, the power tends to shift to hyperopia depending on age (r=0.486, p<.001) and 50.0% of the subjects increased plus power during this study period. Plus power Increments per year in distance refractive power in the reading spectacle wearing group were significantly different with control and multifocals wearing group (p<.05). On the other hand, the multifocals wearing group's increments were not different with control. Increments in reading addition were also increased in the reading spectacles group than in the control and multifocals wearing groups (p<.05). Conclusions: The age related hyperopic shift could be occurred in the elderly people, routine refraction is mandatory. And reading spectacles could induce an age related hyperopic shift and the additional need for reading addition that the rescription of multifocals may reduce changes in distance refractive power and reading addition.

국문 초록 (Abstract)

목적: 노안보정용 안경 착용이 원용굴절력 및 근용가입도 변화에 미치는 영향을 조사하기 위하여 본 연구를 시행 하였다. 방법: 42~75세 사이의 안과질환이 없고 백내장 수술 또는 망막질환의 경험이 없으며 교정시력이 20/20이면 서 노안보정용 안경 착용 경험이 없는 대상자를 대조군, 돋보기 착용군 및 누진다초점안경 착용군으로 세분한 후 방문 시기에 따라 원용굴절력과 근용가입도를 측정하여 비교분석하였으며 추적 관찰은 최대 73개월 동안 진행하였다. 결과: 원용굴절력은 연령에 따라 원시안으로 변하는 경향이 있었으며(r=0.486, p<0.001) 연구기간 중 대상자의 50.0%에서 플러스 굴절력이 증가하였다. 돋보기 착용군의 년 간 플러스굴절력 증가량은 대조군 및 누진다초점안경 착용군과 유의한 차이를 보였으나(p<0.05), 누진다초점안경 착용군은 대조군과 차이가 없었다. 돋보기 착용군의 연 간 근용가입도 증가량도 대조군 및 누진다초점안경 착용군보다 더 많았다(p<0.05). 결론: 중노년층에서는 연령관련 원시화현상이 나타날 수 있기 때문에 정기적인 굴절검사가 반드시 필요하며, 돋보기의 착용은 연령관련 원시화 및 근용가입도의 증가를 유발시킬 수 있으나, 누진다초점안경의 처방은 원용굴절력과 근용가입도의 증가를 감소시킬 수 있을 것으로 사료된다.

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