Abstract

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 (~10°), 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 μm.

© 2013 Chinese Optics Letters

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