Document Detail


Measurement of ocular anterior segment dimension and wavefront aberration simultaneously during accommodation.
MedLine Citation:
PMID:  23192320     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
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.
Authors:
Guohua Shi; Yuanyuan Wang; Yimin Yuan; Lin Wei; Fan Lv; Yudong Zhang
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of biomedical optics     Volume:  17     ISSN:  1560-2281     ISO Abbreviation:  J Biomed Opt     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-11-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9605853     Medline TA:  J Biomed Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  120501     Citation Subset:  IM    
Affiliation:
The Chinese Academy of Sciences, The Key Laboratory on Adaptive Optics, Chengdu 610209, ChinabThe Chinese Academy of Sciences, The Institute of Optics and Electronics, Chengdu 610209, China.
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