美国国家眼科研究所的研究者认为，该病变在某些情况下可表现为新生及异常血管的增生，而在另一些情况下亦可表现为原有的血管发生肿胀及渗出。
In some cases, new and abnormal blood vessels grow, and in other cases, existing blood vessels swell and leak, according to the U.S. National Eye Institute.
这项研究得到了国家眼科研究所院内研究计划、美国国立卫生研究院和美国健康援助基金会资助。
This work was supported by grants from The Intramural Research Program of the National Eye Institute, the National Institutes of Health, and the American Health Assistance Foundation.
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