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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