Clinical Study The Changes of Retinal Saturation after Long-Term Tamponade with Silicone Oil

Copyright © 2015 Bingsheng Lou 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. Purpose. To evaluate the effects of long-term tamponade with silicone oil on retinal saturation. Methods. A total of 49 eyes that received tamponade with silicone oil were included. The patients were divided into 3 groups (3–6 months, 6–9 months, and>9 months) according to the duration of silicone oil tamponade. Retinal oximetry was performed using the Oxymap system before and 2 months after silicone oil removal. Results.Themean retinal oxygen saturation before silicone oil removal was 107 % ± 12 % in the arterioles and 60 % ± 10 % in the venules, with an overall arteriovenous difference (AVD) of 47 % ± 14%. The AVD in the>9-month group was significantly higher than that in the 3–6-month group (54 % ± 16 % versus 44 % ± 11%