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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Vision Res. 2011 May 10;51(13):1379–1396. doi: 10.1016/j.visres.2011.05.002

Fig. 7.

Fig. 7

Optical layout of the first adaptive optics fundus camera that could correct higher order aberrations of the human eye. Wave-front sensing and adaptive compensation. The eye focused a collimated laser beam onto the retina. The light reflected from the retina formed an aberrated wave front at the pupil. The distorted wave front was measured by a Hartmann–Shack wave-front sensor. A deformable mirror, conjugate with the pupil, compensated for the eye's wave aberration. After compensation was achieved, psychophysical or retinal imaging experiments could be performed with a 6-mm pupil. Retinal imaging. A krypton flash lamp delivered a 4-ms flash, illuminating a retinal disk 1 deg in diameter. A scientific-grade CCD acquired images of the retina. From Liang et al. (1997).