Correlation of Optic Nerve Microcirculation with Papillomacular Bundle Structure in Treatment Naive Normal Tension Glaucoma

Purpose. To assess the association between optic nerve head (ONH) microcirculation, central papillomacular bundle (CPB) structure, and visual function in eyes with treatment naive normal tension glaucoma (NTG). Methods. This study included 40 eyes of 40 patients with NTG and 20 eyes of 20 normal pat...

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Main Authors: Wataru Kobayashi, Hiroshi Kunikata, Kazuko Omodaka, Kyousuke Togashi, Morin Ryu, Masahiro Akiba, Gaku Takeuchi, Tetsuya Yuasa, Toru Nakazawa
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Journal of Ophthalmology
Online Access:http://dx.doi.org/10.1155/2014/468908
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author Wataru Kobayashi
Hiroshi Kunikata
Kazuko Omodaka
Kyousuke Togashi
Morin Ryu
Masahiro Akiba
Gaku Takeuchi
Tetsuya Yuasa
Toru Nakazawa
author_facet Wataru Kobayashi
Hiroshi Kunikata
Kazuko Omodaka
Kyousuke Togashi
Morin Ryu
Masahiro Akiba
Gaku Takeuchi
Tetsuya Yuasa
Toru Nakazawa
author_sort Wataru Kobayashi
collection DOAJ
description Purpose. To assess the association between optic nerve head (ONH) microcirculation, central papillomacular bundle (CPB) structure, and visual function in eyes with treatment naive normal tension glaucoma (NTG). Methods. This study included 40 eyes of 40 patients with NTG and 20 eyes of 20 normal patients. We used laser speckle flowgraphy (LSFG) to measure mean blur rate (MBR) in all eyes and calculated the ratio of MBR in the horizontal quadrants of tissue area ONH (temporal/nasal ratio of MBR in the tissue area: T/N MT). Clinical findings also included retinal nerve fiber layer thickness (RNFLT) and ganglion cell complex thickness (GCCT) in the CPB and macular areas, best-corrected visual acuity (BCVA), mean deviation (MD), and refractive error. Results. T/N MT was correlated with both BCVA and MD. The OCT parameters most highly correlated with T/N MT were macular RNFLT and mid-CPB RNFLT. Furthermore, T/N MT, mid-CPB RNFLT, and macular RNFLT were higher in NTG than in normal eyes. A discrimination analysis revealed that T/N MT and refractive error were independent factors indicating NTG. Conclusions. Our results suggest that T/N MT is a candidate biomarker of NTG. Furthermore, T/N MT reflects visual function, including acuity and sensitivity, and CPB structure.
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spelling doaj-art-1de06557a6ac45ed80ff029777adc8092025-02-03T07:26:04ZengWileyJournal of Ophthalmology2090-004X2090-00582014-01-01201410.1155/2014/468908468908Correlation of Optic Nerve Microcirculation with Papillomacular Bundle Structure in Treatment Naive Normal Tension GlaucomaWataru Kobayashi0Hiroshi Kunikata1Kazuko Omodaka2Kyousuke Togashi3Morin Ryu4Masahiro Akiba5Gaku Takeuchi6Tetsuya Yuasa7Toru Nakazawa8Department of Ophthalmology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, JapanDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, JapanDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, JapanDepartment of Bio-Systems Engineering, Faculty of Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa-shi, Yamagata 992-8510, JapanDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, JapanTopcon Corporation, 75-1 Hasunuma-cho, Itabashi-ku, Tokyo 174-8580, JapanTopcon Corporation, 75-1 Hasunuma-cho, Itabashi-ku, Tokyo 174-8580, JapanDepartment of Bio-Systems Engineering, Faculty of Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa-shi, Yamagata 992-8510, JapanDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, JapanPurpose. To assess the association between optic nerve head (ONH) microcirculation, central papillomacular bundle (CPB) structure, and visual function in eyes with treatment naive normal tension glaucoma (NTG). Methods. This study included 40 eyes of 40 patients with NTG and 20 eyes of 20 normal patients. We used laser speckle flowgraphy (LSFG) to measure mean blur rate (MBR) in all eyes and calculated the ratio of MBR in the horizontal quadrants of tissue area ONH (temporal/nasal ratio of MBR in the tissue area: T/N MT). Clinical findings also included retinal nerve fiber layer thickness (RNFLT) and ganglion cell complex thickness (GCCT) in the CPB and macular areas, best-corrected visual acuity (BCVA), mean deviation (MD), and refractive error. Results. T/N MT was correlated with both BCVA and MD. The OCT parameters most highly correlated with T/N MT were macular RNFLT and mid-CPB RNFLT. Furthermore, T/N MT, mid-CPB RNFLT, and macular RNFLT were higher in NTG than in normal eyes. A discrimination analysis revealed that T/N MT and refractive error were independent factors indicating NTG. Conclusions. Our results suggest that T/N MT is a candidate biomarker of NTG. Furthermore, T/N MT reflects visual function, including acuity and sensitivity, and CPB structure.http://dx.doi.org/10.1155/2014/468908
spellingShingle Wataru Kobayashi
Hiroshi Kunikata
Kazuko Omodaka
Kyousuke Togashi
Morin Ryu
Masahiro Akiba
Gaku Takeuchi
Tetsuya Yuasa
Toru Nakazawa
Correlation of Optic Nerve Microcirculation with Papillomacular Bundle Structure in Treatment Naive Normal Tension Glaucoma
Journal of Ophthalmology
title Correlation of Optic Nerve Microcirculation with Papillomacular Bundle Structure in Treatment Naive Normal Tension Glaucoma
title_full Correlation of Optic Nerve Microcirculation with Papillomacular Bundle Structure in Treatment Naive Normal Tension Glaucoma
title_fullStr Correlation of Optic Nerve Microcirculation with Papillomacular Bundle Structure in Treatment Naive Normal Tension Glaucoma
title_full_unstemmed Correlation of Optic Nerve Microcirculation with Papillomacular Bundle Structure in Treatment Naive Normal Tension Glaucoma
title_short Correlation of Optic Nerve Microcirculation with Papillomacular Bundle Structure in Treatment Naive Normal Tension Glaucoma
title_sort correlation of optic nerve microcirculation with papillomacular bundle structure in treatment naive normal tension glaucoma
url http://dx.doi.org/10.1155/2014/468908
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