J Korean Ophthalmol Soc > Volume 57(4); 2016 > Article
Journal of the Korean Ophthalmological Society 2016;57(4):628-633.
DOI: https://doi.org/10.3341/jkos.2016.57.4.628    Published online April 15, 2016.
Correlation between Visual Acuity and Retinal Nerve Fiber Layer Thickness in Optic Neuropathies.
Ji Woong Park, Sung Eun Kyung
Department of Ophthalmology, Dankook University College of Medicine, Cheonan, Korea. kseeye@hanmail.net
시신경병증 환자군에서 빛간섭단층촬영기로 측정한 망막신경섬유층 두께와 시력과의 관계
박지웅⋅경성은
단국대학교 의과대학 안과학교실
Correspondence:  Sung Eun Kyung
Received: 26 November 2015   • Revised: 12 February 2015   • Accepted: 12 March 2016
Abstract
PURPOSE
To assess the correlation between retinal nerve fiber layer (RNFL) thickness measured by optical coherence tomography (OCT, Cirrus HD-OCT®) and visual acuity in optic neuritis, ischemic optic neuropathy and traumatic optic neuropathy. METHODS: Thirty-eight patients were recruited. RNFL thickness and visual acuity in optic neuritis, ischemic optic neuropathy and traumatic optic neuropathy were measured at least 6 months after the event. The correlation between log MAR best-corrected visual acuity (BCVA) and retinal nerve fiber thickness in each quadrant was analyzed. RESULTS: log MAR BCVA and RNFL thickness of each quadrant in optic neuropathy exhibited a statistically significant correlation. In optic neuritis, RNFL thickness of the superior quadrant was significantly thicker than in ischemic optic neuropathy and traumatic optic neuropathy (p = 0.009, 0.003). In addition, RNFL thickness of the inferior quadrant in optic neuritis was significantly thicker than in traumatic optic neuropathy (p = 0.012). CONCLUSIONS: There was a statistically significant correlation between log MAR BCVA and RNFL thickness by OCT in patients with optic neuropathies. The RNFL thickness may predict visual acuity after an optic neuropathy attack and help to differentiate malingering patients with impaired vision loss.
Key Words: Optic neuropathy;Optical coherence tomography;Retinal nerve fiber layer


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