• Circularly polarized light was used in fundus and optic disc photography to reduce reflected glare and photographic artifacts originating from the ocular media and the lenses of the fundus camera. A standard fundus camera was used, with circular polarizers placed in the illumination and observation paths. The quality of fundus photography was improved significantly in eyes with intraocular lenses, cataract, vitreous haze, or high myopia as well as in normal eyes, in fundus photography of the retinal periphery, and in optic disc photography.
Fariza E, Jalkh AE, Thomas JV, O'Day T, Peli E, Acosta J. Use of Circularly Polarized Light in Fundus and Optic Disc Photography. Arch Ophthalmol. 1988;106(7):1001-1004. doi:10.1001/archopht.1988.01060140147043