Accommodation-based liquid crystal adaptive optics system for large ocular aberration correction

According to ocular aberration property and liquid crystal (LC) corrector characteristics, we calculated the minimum pixel demand of the LC corrector used for compensating large ocular aberrations. Then, an accommodation based optical configuration was introduced to reduce the demand. Based on this...

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Bibliographic Details
Published in:Optics letters 2008-12, Vol.33 (24), p.2898-2900
Main Authors: Mu, Quanquan, Cao, Zhaoliang, Li, Chao, Jiang, Baoguang, Hu, Lifa, Xuan, Li
Format: Article
Language:English
Subjects:
Accommodation, Ocular
Astigmatism - diagnosis
Astigmatism - pathology
Display devices, liquid-crystal devices
Equipment Design
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Humans
Liquid Crystals
Myopia - diagnosis
Myopia - pathology
Optical elements, devices, and systems
Optics
Optics and Photonics
Physics
Refraction, Ocular
Refractive Errors
Retina - pathology
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Summary:According to ocular aberration property and liquid crystal (LC) corrector characteristics, we calculated the minimum pixel demand of the LC corrector used for compensating large ocular aberrations. Then, an accommodation based optical configuration was introduced to reduce the demand. Based on this an adaptive optics (AO) retinal imaging system was built. Subjects with different defocus and astigmatism were tested to prove this. For myopia lower than 5D it performs well. When myopia is as large as 8D the accommodation error increased to nearly 3D, which requires the LC corrector to have 667 x 667 pixels to get a well-corrected image.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.33.002898