INTERNATIONAL DUMLUPINAR SCIENCE AND MATHEMATICS CONGRESS, Kütahya, Turkey, 5 - 07 September 2022, pp.98-99
Aim: To present, numerically, the change in the polarization ellipse of partially coherent light beams
during the course of interaction with the crystalline human eye lens. A drastic change will be shown in
the ellipse of random light beams during their propagation in the human eye.
Materials and methods: In this section, there are three main parts; ABCD matrix elements of the lens,
cross-spectral density matrix of the light beam, and polarization parameters in the beam through
propagation. After the initial study of the crystalline human eye lens’ response to stochastic light, it is
now possible to analyze the interaction of any type of light with the eye lens. Also, the light that enters
the eye is broadband and has a range of coherence values from incoherent to fully coherent. On that
account, by using the tools of diffraction theory of optics together with the ray tracing methods, I observe
the variation in the polarization ellipse of partially coherent light passing through the human eye lens.
Results: A directional un-polarized random light of cross-sectional radius ~0,3 mm is sent numerically
to the lens surface which resides at the minimum possible pupil radius of ~0,5 mm. And, the propagation
is analyzed in 17 mm after the lens which is the typical length of vitreous humor. A change in the
polarization ellipse of the incident light (having a Gaussian profile) is detected and shown in numerical
Conclusion: I’ve found that the correlation effects of almost natural light on the gradient index human
eye lens causes a polarization ellipse change during propagation.
Keywords: Polarization; Human Eye; Human Eye Lens; Partially Coherent Light