MTF of the defocused optical system of the human eye for incoherent monochromatic light

A psychophysical method has been used to measure the modulation transfer function (MTF) of the defocused optical system of the human eye for incoherent monochromatic light (514 nm) and for various pupil diameters. The results have been compared with theoretical calculations based on aberration coefficients found previously. MTF's have been computed for white light with the help of the measurements obtained for monochromatic light.