In vivo fluorescence imaging of primate retinal ganglion cells and retinal pigment epithelial cells.

Abstract

The ability to resolve single cells noninvasively in the living retina has important applications for the study of normal retina, diseased retina, and the efficacy of therapies for retinal disease. We describe a new instrument for high-resolution, in vivo imaging of the mammalian retina that combines the benefits of confocal detection, adaptive optics, multispectral, and fluorescence imaging. The instrument is capable of imaging single ganglion cells and their axons through retrograde transport in ganglion cells of fluorescent dyes injected into the monkey lateral geniculate nucleus (LGN). In addition, we demonstrate a method involving simultaneous imaging in two spectral bands that allows the integration of very weak signals across many frames despite inter-frame movement of the eye. With this method, we are also able to resolve the smallest retinal capillaries in fluorescein angiography and the mosaic of retinal pigment epithelium (RPE) cells with lipofuscin autofluorescence.

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@article{Gray2006InVF, title={In vivo fluorescence imaging of primate retinal ganglion cells and retinal pigment epithelial cells.}, author={Daniel C. Gray and William H . Merigan and Jessica I Wolfing and Bernard P Gee and Jason Porter and Alfredo Dubra and Ted H Twietmeyer and Kamran Ahamd and Remy Tumbar and Fred N Reinholz and David R. Williams}, journal={Optics express}, year={2006}, volume={14 16}, pages={7144-58} }