Factors associated with enlargement of chorioretinal atrophy after intravitreal bevacizumab for myopic choroidal neovascularization |
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Authors: | Riyo Uemoto Houmei Nakasato-Sonn Tatsukata Kawagoe Meguro Akira Eiichi Okada Nobuhisa Mizuki |
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Institution: | Department of Ophthalmology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa, Japan. minami111@nyc.odn.ne.jp |
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Abstract: | Purpose To determine the factors significantly associated with an enlargement of the area of a chorioretinal atrophy (ChRA) after intravitreal bevacizumab (IVB) to treat myopic choroidal neovascularization (mCNV). Methods The medical charts of 27 eyes with a mCNV that had received IVB were reviewed. The ophthalmic examinations included measurements of the best-corrected visual acuity, visual fields with the Humphrey 10-2 Field Analyzer, fluorescein angiography, and indocyanine green angiography. The area of the mCNV and the chorioretinal atrophy (ChRA) were measured on the FA images. Results Eyes with an enlargement of the ChRA had significantly larger mCNVs at the baseline, a greater reduction in the size of the mCNV, a higher incidence of subretinal hemorrhage, longer duration of follow-up, received more injections of IVB, and had a greater decrease of retinal sensitivity (P?≤?0.041). Multiple regression analyses showed that the factors most significantly associated with an enlargement of the ChRA were the CNV size at baseline, the number of IVB injections, and the duration of the follow-up period (P?0.0001). Conclusions Our findings showed that eyes with a larger CNV at the baseline and longer follow-up period had a greater risk of developing a ChRA like non-treatment, even if IVB treatment was performed for mCNV. |
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