Effects of Exercise on the Structure and Circulation of Choroid in Normal Eyes

脉络膜 医学 血流 眼科 心率 血压 舒张期 灌注 心脏病学 内科学 光学 物理 视网膜
作者
Takamasa Kinoshita,Junya Mori,Natsuki Okuda,Hiroko Imaizumi,Masanori Iwasaki,Miho Shimizu,Hirotomo Miyamoto,Kei Akaiwa,Kentaro Semba,Shozo Sonoda,Taiji Sakamoto,Yoshinori Mitamura
出处
期刊:PLOS ONE [Public Library of Science]
卷期号:11 (12): e0168336-e0168336 被引量:19
标识
DOI:10.1371/journal.pone.0168336
摘要

To determine the effects of dynamic exercise on the circulation and the luminal and stromal areas of the choroid in normal eyes.This was a prospective interventional study of 38 eyes of 38 normal subjects enrolled by invitation. The systolic and diastolic blood pressures, heart rate, intraocularpressure, mean ocular perfusion pressure (MOPP), choroidal blood velocity, and enhanced depth imaging optical coherence tomographic (EDI-OCT) images were recorded before, and immediately after mild dynamic exercise. The same measurements were recorded after 10 min of rest. The choroidal blood velocity was measured bylaser speckle flowgraphy, and the mean blur rate was used for the evaluations. The horizontal EDI-OCT images of the subfoveal choroid were converted to binary images. The central choroidal thickness (CCT), total cross sectional choroidal area, luminal areas, stromal areas, and the ratio of luminal area to total choroidal area (L/C ratio) were determined from these images.The systolic and diastolic blood pressures, heart rate, MOPP, and the mean blur rate were significantly increased immediately after the exercise and significantly decreased 10 minutes after the exercise. There wereno significant changes in the mean CCT, the mean total choroidal area, the mean luminal and stromal areas, and the mean L/C ratio after the exercise.Our results suggest that a rest period is needed before measurements of blood flow velocity but not necessary for the EDI-OCT imaging to determine the choroidal thickness and area.

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