Retinal imaging system with adaptive optics enhanced with pupil tracking

2011 ◽  
Author(s):  
Betul Sahin ◽  
Barbara Lamory ◽  
Xavier Levecq ◽  
Laurent Vabre ◽  
Chris Dainty
Keyword(s):  
Adaptive Optics ◽  
Imaging System ◽  
Retinal Imaging ◽  
Pupil Tracking

Bimorph Deformable Mirrors for Adaptive Optics of Human Retinal Imaging System

2013 ◽  
Vol 33 (2) ◽  
pp. 0211001 ◽  
Author(s):  
周虹 Zhou Hong ◽  
官春林 Guan Chunlin ◽  
戴云 Dai Yun
Keyword(s):  
Adaptive Optics ◽  
Imaging System ◽  
Retinal Imaging ◽  
Deformable Mirrors

Research on Flat Field Correction Method in Adaptive Optics Retinal Imaging System

2011 ◽  
Vol 31 (12) ◽  
pp. 1211001 ◽  
Author(s):  
孔宁宁 Kong Ningning ◽  
李抄 Li Chao ◽  
夏明亮 Xia Mingliang ◽  
齐岳 Qi Yue ◽  
李大禹 Li Dayu ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Imaging System ◽  
Retinal Imaging ◽  
Correction Method ◽  
Flat Field

Design of two degree-of-freedom head prop in adaptive optics retinal imaging system

2015 ◽  
Vol 30 (4) ◽  
pp. 590-595
Author(s):  
潘宇骏 PAN Yu-jun ◽  
韩玉琢 HAN Yu-zhuo ◽  
解洪升 XIE Hong-sheng ◽  
杨乐宝 YANG Le-bao ◽  
王少鑫 WANG Shao-xin ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Imaging System ◽  
Retinal Imaging ◽  
Degree Of Freedom ◽  
Two Degree Of Freedom

scholarly journals Statistical analysis of ocular monochromatic aberrations in Chinese population for adaptive optics ophthalmoscope design

2017 ◽  
Vol 10 (01) ◽  
pp. 1650038 ◽  
Author(s):  
Junlei Zhao ◽  
Fei Xiao ◽  
Jian Kang ◽  
Haoxin Zhao ◽  
Yun Dai ◽  
...  
Keyword(s):  
High Resolution ◽  
Adaptive Optics ◽  
Chinese Population ◽  
Imaging System ◽  
Retinal Imaging ◽  
Clinical Environment ◽  
Monochromatic Aberrations ◽  
Imaging System Design ◽  
Healthy Eyes

It is necessary to know the distribution of the Chinese eye’s aberrations in clinical environment to guide high-resolution retinal imaging system design for large Chinese population application. We collected the monochromatic wave aberration of 332 healthy eyes and 344 diseased eyes in Chinese population across a 6.0-mm pupil. The aberration statistics of Chinese eyes including healthy eyes and diseased eyes were analyzed, and some differences of aberrations between the Chinese and European race were concluded. On this basis, the requirement for adaptive optics (AO) correction of the Chinese eye’s monochromatic aberrations was analyzed. The result showed that a stroke of 20[Formula: see text][Formula: see text]m and ability to correct aberrations up to the 8th Zernike order were needed for reflective wavefront correctors to achieve near diffraction-limited imaging in both groups for a reference wavelength of 550[Formula: see text]nm and a pupil diameter of 6.0[Formula: see text]mm. To verify the analysis mentioned above, an AO flood-illumination system was established, and high-resolution retinal imaging in vivo was achieved for Chinese eye including both healthy and diseased eyes.

High Resolution Retinal Imaging Based on Ocular Aberration Measurement and Compensation

2012 ◽  
Vol 246-247 ◽  
pp. 213-218
Author(s):  
Chun Liang ◽  
Jian Xin Shen ◽  
Sai Sai Niu
Keyword(s):  
High Resolution ◽  
Adaptive Optics ◽  
Imaging System ◽  
Low Cost ◽  
Critical Role ◽  
Retinal Imaging ◽  
Retinal Disease ◽  
Retinal Cell ◽  
Wavefront Aberration ◽  
Diagnostic Modality

Ocular retinal imaging is a major diagnostic modality for retinal disease, and can play a critical role for diagnosing systemic diseases such as diabetes and eye-specific diseases such as macular degeneration and diabetic retinopathy, the leading causes of blindness. In order to get high-resolution retinal imaging and develop the low-cost and compact retinal imaging system, we employ micro adaptive optics, which is consisted of wavefront sensor, wavefront corrector and control system. In this paper, the theory, design and testing of the ocular retinal microscopy is detailed, with an emphasis on the eye wavefront aberration describing, aberration detecting method with Hartmann-Shack wavefront sensing and close-loop aberration compensating by micromachined membrane deformable mirrors(MMDM).The ocular retinal microscopy experimental setup is built, the retinal cell imaging had been snapped. It is showed in this work that the ocular retinal microscopy based on adaptive optics system can enable diffraction-limited imaging of micro-scale features of the retina, through real-time compensation of aberrations introduced by the eye.

Laser Exposure Safety Analysis for Adaptive Optics Retinal Imaging System

2020 ◽  
Vol 40 (10) ◽  
pp. 1014003
Author(s):  
刘颖 Liu Ying ◽  
杨亚良 Yang Yaliang ◽  
岳献 Yue Xian
Keyword(s):  
Adaptive Optics ◽  
Imaging System ◽  
Retinal Imaging ◽  
Safety Analysis ◽  
Laser Exposure

scholarly journals Adaptive optics with pupil tracking for high resolution retinal imaging

2012 ◽  
Vol 3 (2) ◽  
pp. 225 ◽  
Author(s):  
Betul Sahin ◽  
Barbara Lamory ◽  
Xavier Levecq ◽  
Fabrice Harms ◽  
Chris Dainty
Keyword(s):  
High Resolution ◽  
Adaptive Optics ◽  
Retinal Imaging ◽  
Pupil Tracking
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