Fresnel diffraction in a theoretical eye: a fractional Fourier transform approach

In this work, we have applied the fractional Fourier transform to obtain the Fresnel diffraction patterns in a theoretical eye. The FRT approach to Fresnel diffraction is easily implemented in a Gullstrand-Emsley theoretical eye, and it allows us to obtain the retinal image and then to derive the modulation transfer function of the eye, which can be used in the determination of optical performance of the eye