Resorption of subretinal fluid by transepithelial flow of the retinal pigment epithelium |
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Authors: | Etsuo Chihara Nobuhisa Nao-i |
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Institution: | (1) Department of Ophthalmology, Faculty of Medicine, Kyoto University, 606 Sakyo-ku, Kyoto, Japan |
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Abstract: | The efficiency of flow through the retinal pigment epithelium (RPE) was calculated by studying the postoperative course of the subretinal fluid after nondrainage surgery of rhegmatogenous retinal detachment. In ten eyes of ten patients the preoperative volume of the subretinal fluid, area of the RPE participating in resorption of the fluid, elapsed time until resorption of the fluid, and efficiency of the flow were studied using B-scan ultrasonography. The flow through the RPE was 261 l/cm2 per day and could drain more than 50% of the vitreous volume to the choroidal circulation. These data coincide well with early reattachment of neural retina in nondrainage surgery. No statistically significant difference in this flow was seen between young and old patients. |
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