Objective To comprehensively assess the binocular function of college students with different glasses-wearing habits and myopic anisometropia using an eye-tracking-based, naked-eye 3D visual inspection system.

Methods Between December 2023 and March 2024, a total of 137 myopic (equivalent spherical diopter per eye ≤ －0.50 D) students were recruited at Sichuan University. They were divided into 2 groups, including a group of 78 participants who wore glasses continuously, and another group of 59 participants who did not wear glasses continuously. According to the degree of myopic anisometropia (the difference between the equivalent spherical diopters, ΔSE), the 2 groups were further divided into subgroups A (0 D < ΔSE ≤ 1.00 D) and B (ΔSE > 1.00 D). Binocular function was examined using a naked-eye 3D display device based on human eye tracking, and the correlation between different glasses-wearing habits and myopic anisometropia and binocular visual function was analyzed.

Results There was no statistically significant difference in the degree of myopic anisometropia between the continuous glasses-wearing group (1.15 ± 1.15 D) and the non-continuous glasses-wearing group (1.20 ± 1.15 D) (P = 0.798). In addition, there was no statistically significant difference in refraction between the continuous glasses-wearing group and the non-continuous glasses-wearing group (P = 0.158). There were statistically significant differences in the perceptual eye position of the right eye between the continuous glasses-wearing subgroups A and B (P < 0.05). There were statistically significant differences in coarse stereopsis between the non-continuous glasses-wearing subgroups A and B (P < 0.05). There were statistically significant differences in foveal suppression, fine stereopsis, and perceptual eye position between the continuous glasses-wearing group and the non-continuous glasses-wearing group (P < 0.05).

Conclusion Both glasses-wearing habits and myopic anisometropia have effects on the binocular visual function of college students.