Makoto Araie1, Hiroshi Murata2, Aiko Iwase3, Masanori Hangai4, Kazuhisa Sugiyama5, Nagahisa Yoshimura6. 1. Kanto Central Hospital of The Mutual Aid Association of Public School Teachers Tokyo, Japan 2Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan. 2. Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan. 3. Tajimi Iwase Eye Clinic, Tajimi, Gifu, Japan. 4. Department of Ophthalmology, Saitama Medical School, Moro, Japan. 5. Department of Ophthalmology and Visual Science, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan. 6. Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Abstract
PURPOSE: To determine if the relationship between retinal sensitivity and macular inner retinal layer thickness differs between primary open-angle glaucoma (POAG) with mild and advanced central visual field (VF) damage. METHODS: One eye of 153 POAG patients was included. Using spectral-domain optical coherence tomography, we measured the average thickness of the macular ganglion cell-inner plexiform layers (GCIPLT) and the macular nerve fiber layer/GCIPL (ganglion cell complex [GCCT]) in a 0.9-mm-diameter ganglion cell displacement-adjusted circular area corresponding to the four central test points of the Humphrey Perimeter 24-2 program and correlated the results with the average retinal sensitivity (1/Lambert) at the corresponding test points, with adjustment for other confounding factors. RESULTS: Ninety-three eyes had mild central and 60 eyes advanced central VF damage with an average total deviation (TD) of the four test points of greater than or equal to -4 decibels (dB) (mild group) and less than -4 dB (more severe group), respectively; the average mean deviations were -3.0 and -9.8 dB, respectively. In the mild group, the GCCT and GCIPLT were correlated significantly and positively with the average retinal sensitivity with partial regression coefficient of 0.007 and 0.005, respectively, and in the more severe group with partial regression coefficient of 0.019 = 0.007 + 0.012 (P = 0.007) and 0.010 = 0.005 + 0.005 (P = 0.078), respectively. The axial length and disc size were correlated with GCIPLT with marginal significance (P = 0.052 and P = 0.042). CONCLUSIONS: The relationship between the macular GCC and GCIPL thickness and retinal sensitivity at the corresponding retinal areas differed between POAG with mild and advanced central VF damage.
PURPOSE: To determine if the relationship between retinal sensitivity and macular inner retinal layer thickness differs between primary open-angle glaucoma (POAG) with mild and advanced central visual field (VF) damage. METHODS: One eye of 153 POAG patients was included. Using spectral-domain optical coherence tomography, we measured the average thickness of the macular ganglion cell-inner plexiform layers (GCIPLT) and the macular nerve fiber layer/GCIPL (ganglion cell complex [GCCT]) in a 0.9-mm-diameter ganglion cell displacement-adjusted circular area corresponding to the four central test points of the Humphrey Perimeter 24-2 program and correlated the results with the average retinal sensitivity (1/Lambert) at the corresponding test points, with adjustment for other confounding factors. RESULTS: Ninety-three eyes had mild central and 60 eyes advanced central VF damage with an average total deviation (TD) of the four test points of greater than or equal to -4 decibels (dB) (mild group) and less than -4 dB (more severe group), respectively; the average mean deviations were -3.0 and -9.8 dB, respectively. In the mild group, the GCCT and GCIPLT were correlated significantly and positively with the average retinal sensitivity with partial regression coefficient of 0.007 and 0.005, respectively, and in the more severe group with partial regression coefficient of 0.019 = 0.007 + 0.012 (P = 0.007) and 0.010 = 0.005 + 0.005 (P = 0.078), respectively. The axial length and disc size were correlated with GCIPLT with marginal significance (P = 0.052 and P = 0.042). CONCLUSIONS: The relationship between the macular GCC and GCIPL thickness and retinal sensitivity at the corresponding retinal areas differed between POAG with mild and advanced central VF damage.