Light scattering in the human eye modelled as random phase perturbations

Area of Science:

• Ophthalmology
• Optical Engineering
• Computational Vision

Background:

• Light scattering in the eye degrades vision quality, worsening with age and conditions like cataracts.
• Existing simulation methods struggle to accurately reproduce the complex light distribution patterns caused by scattering.

Purpose of the Study:

• To develop a novel statistical model for wavefront perturbations at the eye's pupil plane.
• To accurately replicate the angular distribution of light on the retina.

Main Methods:

• A statistical model based on the parameterization of the discrete cosine spectrum of wavefront perturbations was developed.
• Experimental validation was performed using a setup with a liquid crystal on silicon spatial phase modulator.

Main Results:

• The model successfully replicates the characteristic angular distribution of light on the retina.
• Experimental validation confirmed the model's performance in simulating light scattering effects.

Conclusions:

• The developed statistical model provides a robust method for simulating light scattering in the eye.
• This validated instrument enables further visual experiments with controlled light scattering induction.