Method, system and computer program for measuring light diffusion in the eyeball or in the ocular region. The method comprises: - projecting a punctiform light beam onto the retina； - correcting low-order ocular aberrations of the eye； - capturing and recording an image of the retinal plane formed after reflection of the punctiform light beam on the retina and a double passage through the ocular media of the eye； and - at the same time as capturing the image of the retinal plane, performing a high- and low-order ocular aberration measurement in the plane of the pupil and performing a light diffusion measurement, combining ocular aberration measurement information with information on the image of the retinal plane. The system and the computer program are adapted for implementing the method.
