우세안과 비우세안의 망막신경섬유층 두께, 시신경유두 형태 비교
Retinal Nerve Fiber Layer Thickness and Optic Disc Parameters in Dominant Compared with Non-Dominant Eyes
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목적: 우세안과 비우세안에서 빛간섭단층촬영기(Cirrus HD-OCT®)로 측정한 망막신경섬유층(RNFL) 두께 및 시신경유두 형태를 비교분석하고자 하였다. 대상과 방법: 20대의 정상인 71명을 대상으로 양안 시력교정 후, hole-in-the-card test의 방법을 사용하여 우세안을 결정하였고, 전반적인 안과 검사 후 OCT를 시행하여 RNFL두께 및 시신경유두 형태를 측정하였다. 결과: 우세안의 안압이 비우세안에 비해 높았으며(p=0.030), 나안시력, 굴절률, 안축장은 모두 양안에서 유의한 차이가 없었다(p=0.235, 0.180, 0.850). OCT로 측정한 망막신경섬유층의 두께 및 시신경유두 형태는 우세안과 비우세안 사이에 유의한 차이를 보이지 않았다. 결론: 우세안의 안압이 비우세안에 비해 높았으나, OCT로 측정한 양안의 망막신경섬유층의 두께 및 시신경유두 지표는 차이가 없었다.
Abstract
Purpose: To investigate the comparison of retinal nerve fiber layer (RNFL) thickness and optic disc parameters measured by optical coherence tomography (Cirrus HD-OCT®) in dominant and non-dominant eyes. Methods: Seventy-one subjects without underlying ocular disease were recruited for the present study. Ocular dominance was determined using the hole-in-the-card test. Comprehensive standardized eye examinations were performed. Scans of the optic disc and RNFL were performed using OCT. Results: The mean intraocular pressure (IOP) of the dominant eye was higher than its counterpart (p = 0.025). No significant differences were observed in uncorrected visual acuity, refractive error and axial length between dominant and non-dominant eyes (p = 0.235, 0.180, 0.850). No RNFL and optic disc features were identified in the dominant from non-dominant eyes. Conclusions: Although dominant eyes tended to have higher IOP than non-dominant eyes, no consistent ocular structural differences between dominant and non-dominant eyes with the use of OCT were found.
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