Our lab became involved in measuring the optics of the eye when we asked the question "Why do cones point towards a location that is not in the center of the pupil". To answer this we improved a spatially resolved refractometer that Rob Webb and Murray Penned had built in the early 1990's when working on customized corneal surgery. Using this technique we were able to investigate a range of phenomena, including how optical quality changes with age, how optical imperfections (waverfront aberrations) are a two edged sword, providing resistance to out of focus and chromatic image degradation, but also reducing the optimal image quality.
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