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Contributions of the cornea and the lens to the aberrations of the human eye

ABSTRACT

The relative contributions of optical aberrations of the cornea and the crystalline lens to the f inal image quality of the human eye were studied. The aberrations of the entire eye were obtained from pairs of double-pass retinal images, and the aberrations of the cornea were obtained from videokeratographic data. Third-order spherical aberration and coma were signif icantly larger for the cornea than for the complete eye, indicating a signif icant role of the lens in compensating for corneal aberrations. In a second experiment retinal images were recorded in an eye before and after we neutralized the aberrations of the cornea by having the subjects wear swimming goggles f illed with saline water, providing a direct  estimate of the optical performance of the crystalline lens. ã 1998 Optical Society of America

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