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Journal of Biomedical Optics • Open Access

Measurement of ocular anterior segment dimension and wavefront aberration simultaneously during accommodation
Author(s): Guohua Shi; Yuanyuan Wang; Yimin Yuan; Lin Wei; Fan Lu; Yudong Zhang

Paper Abstract

In order to understand the relationship between accommodation and vision quality, a custom-built ultra-long scan depth spectral domain optical coherence tomography (UL-SDOCT) and a Shack-Hartmann wavefront sensor (HSWFS) were combined. The resolution and scan depth of UL-SDOCT are 6 μm and 15.6 mm, respectively, which allow for high-resolution imaging of the whole anterior segment. The HSWFS consists of a 32×32 microlens array, and is able to measure first 35th-order Zernike aberrations with (1/20)λ measurement accuracy. The integrated system succeeded in measuring the ocular anterior segment dimension parameters and the ocular monochromatic high-order aberrations simultaneously under the conditions of nonaccommodative and accommodative stimuli. This may help understand the regulatory mechanism of image quality control in the human eye.

Paper Details

Date Published: 28 November 2012
PDF: 3 pages
J. Biomed. Opt. 17(12) 120501 doi: 10.1117/1.JBO.17.12.120501
Published in: Journal of Biomedical Optics Volume 17, Issue 12
Show Author Affiliations
Guohua Shi, Institute of Optics and Electronics (China)
Yuanyuan Wang, Wenzhou Medical College (China)
Yimin Yuan, Wenzhou Medical College (China)
Lin Wei, Institute of Optics and Electronics (China)
Fan Lu, Wenzhou Medical College (China)
Yudong Zhang, Institute of Optics and Electronics (China)

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