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Journal of Biomedical Optics

Accommodation-induced variations in retinal thickness measured by spectral domain optical coherence tomography
Author(s): Shanhui Fan; Yong Sun; Cuixia Dai; Haihua Zheng; Qiushi Ren; Shuliang Jiao; Chuanqing Zhou
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Paper Abstract

To research retinal stretching or distortion with accommodation, accommodation-induced changes in retinal thickness (RT) in the macular area were investigated in a population of young adults (n=23) by using a dual-channel spectral domain optical coherence tomography (SD-OCT) system manufactured in-house for this study. This dual-channel SD-OCT is capable of imaging the cornea and retina simultaneously with an imaging speed of 24 kHz A-line scan rate, which can provide the anatomical dimensions of the eye, including the RT and axial length. Thus, the modification of the RT with accommodation can be calculated. A significant decrease in the RT (13.50±1.25  μm) was observed during maximum accommodation. In the 4  mm×4  mm macular area centered at the fovea, we did not find a significant quadrant-dependent difference in retinal volume change, which indicates that neither retinal stretching nor distortion was quadrant-dependent during accommodation. We speculate that the changes in RT with maximum accommodation resulted from accommodation-induced ciliary muscle contractions.

Paper Details

Date Published: 18 September 2014
PDF: 8 pages
J. Biomed. Opt. 19(9) 096012 doi: 10.1117/1.JBO.19.9.096012
Published in: Journal of Biomedical Optics Volume 19, Issue 9
Show Author Affiliations
Shanhui Fan, Shanghai Jiao Tong Univ. School of Medicine (China)
Yong Sun, Shanghai Jiao Tong Univ. (China)
Cuixia Dai, Shanghai Jiao Tong Univ. (China)
Haihua Zheng, Wenzhou Medical College (China)
Qiushi Ren, Peking Univ. (China)
Shuliang Jiao, Florida International Univ. (United States)
Chuanqing Zhou, Shanghai Jiao Tong Univ. (China)

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