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Kazunori Tamaki, Itaru Kimura, Yutaka Imamura, Yugo Nakazawa, Satoshi Watanabe, Akira Murakami, Nobuyuki Ebihara; The investigation of correlation between subfoveal choroidal thickness and sensitivity of visual field in highly myopic glaucoma with peripapillary atrophy optic disc. Invest. Ophthalmol. Vis. Sci. 2013;54(15):1879.
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© ARVO (1962-2015); The Authors (2016-present)
To measure subfoveal choroidal thickness of POAG patients with high myopia, and to investigate the correlation between the choroidal thickness and stage of visual field or MD values, or degree of peripapillary atrophy(PPA).
94 eyes from 55 patients(aveage age 54.0±11.8years old)diagnosed as POAG including preperimetric glaucoma with spherical equivalent refractive error under -6 diopters were studied. They were classified into 2 groups, one had not the disc with whole surrounding PPA (L-group) and the group which had the disc with whole surrounding PPA (S-group). 42 eyes were S group, and 52 eyes were L group. Subfoveal choroid was imaged with Cirrus HD-OCT (Carl Zeiss Meditec) and its thickness was measured. The correlation were investigated between choroidal thickness and MD value of Humphrey SITA standerd(30-2), and the correlation were compared between L and S-group.
There was significantly correlation between MD value and subfoveal choroidal thickness in 94 eyes (r=0.29, p=0.003). In L-group there was more significant correlation between MD value and subfoveal choroidal thickness, and P value rose to 0.378. In S-group no significant correlation was found between MD value and subfoveal choroidal thickness.
It was shown that thinner the subfoveal choroidal thickness was, worse the sensitivity of visual field was, in highly myopic POAG patients totally. Furthermore, it is suggested that there is a group showing good correlation between subfoveal choroidal thickness and the sensitivity of visual field, and a group showing no significant correlation like patients who have whole surrounding PPA.
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