Acta Optica Sinica, Volume. 34, Issue 10, 1011004(2014)
Inhibiting Intraocular Stray Light Method to Improve Quality of Retinal Image
Using the liquid crystal spatial light modulator and Shack-Hartmann wave front sensor as the core components, an adaptive optics (AO) system for retinal imaging in vivo is constructed. Based on the modulation transfer function, quantitative analysis of the effects of the intraocular stray light on retinal imaging is carried out. The result demonstrates that the ocular stray light degrades the quality of the retinal images. According to the change characteristic of the polarization state of intraocular stray light. The fundus is illuminated by the polarized light. With the help of trial lens and sighting target with focal length of 1 m, the light source can be precisely focused on the capillary layer of the retina. Adopting the above mentioned methods, the effect of the ocular stray light is inhibited and the quality of retinal images is improved. Four volunteers participates in the experiments. The clear capillary images are obtained.
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Xie Hongsheng, Yang Lebao, Xia Mingliang, Li Dayu, Xuan Li. Inhibiting Intraocular Stray Light Method to Improve Quality of Retinal Image[J]. Acta Optica Sinica, 2014, 34(10): 1011004
Category: Imaging Systems
Received: Apr. 17, 2014
Accepted: --
Published Online: Aug. 26, 2014
The Author Email: Hongsheng Xie (hsxie1002@gmail.com)