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PAL Aspheric Lenses - Image Quality Comparison

PAL vs. spherical lens photos

Best focus position is defined at 3 mm pupil (photopic condition) and maintained at 5 mm pupil testing (scotopic condition).

EC-3 Box

Traditional spherical IOLs are subject to aberrations that result in slightly distorted images on the retina - particularly at large pupil diameter. This is because light rays that enter the eye peripherally undergo stronger refraction than those that enter centrally. One of the benefits of Aaren Scientific PAL optics is improved contrast sensitivity especially in low light (large pupil) conditions, as shown in these resolution target photos taken through an eye model.