Chinese Optics Letters, Volume. 11, Issue 2, 021101(2013)
Retina imaging by using compact line scanning quasi-confocal ophthalmoscope
A compact line scanning quasi-confocal ophthalmoscope (LSO) is presented in this letter. Compared with a conventional scanning laser ophthalmoscope (SLO), the bench-top LSO significantly reduces the size, complexity, and cost of SLO utility with routine use. The LSO uses one moving part to produce high-contrast and high-resolution quasi-confocal images with nearly the same performance as a SLO. The LSO has a moderate field of view (~10o), which enables images of the macula, the optic nerve head, and other targets to be obtained more quickly and efficiently. An image of the optic nerve head is taken in a preliminary investigation on human subjects. Individual nerve fiber bundles and vessels are resolved at a shallow depth, with a lateral resolution of nearly 10 \mu m.
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Yi He, Hao Li, Jing Lu, Guohua Shi, Yudong Zhang, "Retina imaging by using compact line scanning quasi-confocal ophthalmoscope," Chin. Opt. Lett. 11, 021101 (2013)
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Received: Jun. 21, 2012
Accepted: Aug. 8, 2012
Published Online: Jan. 23, 2013
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