Micron‐resolution ranging of cornea anterior chamber by optical reflectometry

David Huang, Jyhpyng Wang, Charles P. Lin, Carmen A. Puliafito, James G. Fujimoto

研究成果: 雜誌貢獻期刊論文同行評審

129 引文 斯高帕斯(Scopus)

摘要

Noncontact, high resolution measurements of anterior eye structures using optical coherence domain reflectometry are described. Distances between intraocular structures are measured by directing a beam of short coherence length light onto the eye and performing an interferometric measurement on the optical group delay of reflected signals. Measurements of corneal thickness, corneal excision depth, and anterior chamber depth are demonstrated in vitro, and the location of tissue boundaries is resolved to within ± 2 μm. The full‐width‐half‐maximum longitudinal resolution is 10 μm. Sensitivities to reflected signals as small as 10−10 of the incident power are achieved by heterodyne detection.

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頁(從 - 到)419-425
頁數7
期刊Lasers in Surgery and Medicine
11
發行號5
DOIs
出版狀態已出版 - 1991

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