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.
journal_name
J Biomed Optjournal_title
Journal of biomedical opticsauthors
Shi G,Wang Y,Yuan Y,Wei L,Lv F,Zhang Ydoi
10.1117/1.JBO.17.12.120501subject
Has Abstractpub_date
2012-12-01 00:00:00pages
120501issue
12eissn
1083-3668issn
1560-2281pii
1466817journal_volume
17pub_type
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