AIM: To investigate the influence of eccentric scanning on retinal nerve fiber layer (RNFL) analysis using Stratus optical coherence tomography (OCT) in normal Koreans when the eccentricity of scanning occurs in 4 different directions. METHODS: Thirty-one eyes of 31 persons underwent 1 concentric disk-centered and 4 superiorly, inferiorly, nasally and temporally eccentric RNFL OCT scans. RESULTS: The average RNFL thickness measured by temporally eccentric scanning (115.1 microm) was significantly greater when compared with that found by concentric scanning (107.1 microm; p < 0.0001). The proportions of eyes outside normal limits on the RNFL analysis map using the criterion of >or=1 clock hour abnormal at the <1% level in superiorly (12/31, 38.7%), nasally (16/32, 51.6%) and temporally (12/31, 38.7%) eccentric scans were significantly different in comparison with the concentric (4/31, 12.9%) scan (p < 0.05). CONCLUSION: An off-centered OCT scan affected RNFL thickness measurement and its interpretation. (c) 2009 S. Karger AG, Basel.
AIM: To investigate the influence of eccentric scanning on retinal nerve fiber layer (RNFL) analysis using Stratus optical coherence tomography (OCT) in normal Koreans when the eccentricity of scanning occurs in 4 different directions. METHODS: Thirty-one eyes of 31 persons underwent 1 concentric disk-centered and 4 superiorly, inferiorly, nasally and temporally eccentric RNFL OCT scans. RESULTS: The average RNFL thickness measured by temporally eccentric scanning (115.1 microm) was significantly greater when compared with that found by concentric scanning (107.1 microm; p < 0.0001). The proportions of eyes outside normal limits on the RNFL analysis map using the criterion of >or=1 clock hour abnormal at the <1% level in superiorly (12/31, 38.7%), nasally (16/32, 51.6%) and temporally (12/31, 38.7%) eccentric scans were significantly different in comparison with the concentric (4/31, 12.9%) scan (p < 0.05). CONCLUSION: An off-centered OCT scan affected RNFL thickness measurement and its interpretation. (c) 2009 S. Karger AG, Basel.
Authors: Ziad Khoueir; Firas Jassim; Linda Yi-Chieh Poon; Edem Tsikata; Geulah S Ben-David; Yingna Liu; Eric Shieh; Ramon Lee; Rong Guo; Georgia Papadogeorgou; Boy Braaf; Huseyin Simavli; Christian Que; Benjamin J Vakoc; Brett E Bouma; Johannes F de Boer; Teresa C Chen Journal: Am J Ophthalmol Date: 2017-08-12 Impact factor: 5.258
Authors: Yingna Liu; Huseyin Simavli; Christian John Que; Jennifer L Rizzo; Edem Tsikata; Rie Maurer; Teresa C Chen Journal: Am J Ophthalmol Date: 2014-12-12 Impact factor: 5.258
Authors: Stephanie Choi; Firas Jassim; Edem Tsikata; Ziad Khoueir; Linda Y Poon; Boy Braaf; Benjamin J Vakoc; Brett E Bouma; Johannes F de Boer; Teresa C Chen Journal: Transl Vis Sci Technol Date: 2020-02-12 Impact factor: 3.283