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- W1991321900 abstract "Abstract Purpose To provide an overview of adaptive optics imaging of the retina. Methods In ophthalmoscopical imaging, the two dimensional spatial radiance variation of the back scattered light from the retinal surface is measured. Perfect imaging would require that light backscattered from one point on the retina examined is refocused to one point on the detector. Due to diffraction, light scattering and aberrations, some of the light, injected into the eye examined and some of the light back scatted from the retina examined, are deviated. This leads to loss of contrast. Aberrations induced are, for each individual, specific to the optics of the eye examined. In AOSLO, in addition to confocal illumination and light detection, aberrations induced by the optics of the eye examined are individually measured by wave front sensing and corrected for. Results In the AOSLO, a wave front sensor is introduced between the light source and the eye examined. The information from the wave front sensor is fed back to a deformable mirror, also placed in between the light source and the eye examined. The deformable mirror corrects the wave front aberrations induced by the optics of the eye examined. This allows the injected light to form a point on the retinal surface and simultaneously, the backscattered light from the retina of the eye examined to be focused to a point on a detector. An x‐y scanner in front of the eye allows sequential illumination and capturing of aberration minimized back scattered light from an x‐y matrix of the retinal surface of the eye examined. The relative radiances measured in the x‐y matrix represent the image. Conclusion Adaptive optics in ophthalmoscopy improves contrast in the image of the retina examined by correcting for aberrations induced by the optics of the eye examined." @default.
- W1991321900 created "2016-06-24" @default.
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- W1991321900 date "2009-09-01" @default.
- W1991321900 modified "2023-09-25" @default.
- W1991321900 title "Principle of adaptive optics" @default.
- W1991321900 doi "https://doi.org/10.1111/j.1755-3768.2009.4311.x" @default.
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