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Journal of Ophthalmology
Volume 2013 (2013), Article ID 257381, 5 pages
http://dx.doi.org/10.1155/2013/257381
Clinical Study

Aqueous Concentrations of Vascular Endothelial Growth Factor in Eyes with High Myopia with and without Choroidal Neovascularization

1Department of Ophthalmology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
2Department of Biomedical statistics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan

Received 25 June 2012; Accepted 1 February 2013

Academic Editor: Edward Manche

Copyright © 2013 Taku Wakabayashi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose. To investigate aqueous concentrations of vascular endothelial growth factor (VEGF) in eyes with myopic choroidal neovascularization (CNV). Methods. Aqueous samples were collected, and VEGF concentrations were measured by enzyme-linked immunosorbent assay in 16 eyes (16 patients) with active myopic CNV, 23 eyes (16 patients) with high myopia without myopic CNV, and 8 control eyes (7 patients). Differences in the concentrations of VEGF in each group were compared. Results. The estimated mean VEGF concentrations were significantly lower in eyes with myopic CNV (82.0 pg/mL) ( ) and with high myopia without myopic CNV (58.9 pg/mL) ( ) compared with controls (116.6 pg/mL). The estimated mean VEGF concentration was significantly ( ) higher in eyes with myopic CNV than in those without myopic CNV in highly myopic eyes. In eyes with high myopia with and without CNV, the VEGF concentration was significantly (stepwise regression analysis, , ) associated with the presence of myopic CNV but not with age, axial length, or intraocular pressure. Conclusion. Increased levels of VEGF may play a role in the pathogenesis of CNV in highly myopic eyes.