Effect of Myopia and Glare on Mesopic Contrast Sensitivity

The aim of the study is to evaluate the simultaneous effect of mild myopia and glare on contrast sensitivity under mesopic conditions corresponding to the conditions of night driving.

The study included 22 volunteers (11 women and 11 men) aged between 20 and 42 years (mean age 26.5 years, standard deviation 5.2 years) with normal or corrected to normal binocular and monocular vision acuity and normal healthy eyes. The study was designed as a prospective study. After adaptation to mesopic conditions, three series of contrast sensitivity measurements (with fully corrected refractive error, with induced myopia -0.50 D and -1.0 D) were performed in random order using the Mesotest II device. In each series, measurements were performed with and without glare. All measurements were performed twice, and their average was considered as the result. The effect of induced myopia and glare was assessed using the analysis of variance method for repeated measures.

Significant effects of myopia (p.