Abstract: AIM: The aim of the study was to study and compare the higher-order aberrations (HOAs) in myopes and emmetropes. SUBJECTS AND METHODS: This study was done as a cross-sectional, comparative study consisting of 288 myopic eyes and 322 emmetropic eyes yes. All patients included in the study underwent a complete eye examination, including refraction, slit lamp examination, and wave front analysis using Baush and Lomb Zywave aberrometer. The wavefront maps were analyzed using a 6 mm pupil diameter and up to the fifth order of Zernike coefficients. RESULTS: The mean age in the myopic group was 24.5 ± 4.5 years. The mean spherical equivalent in the myopic group was − 3.5 ± 2.7 D. A statistically significant ( P ≤ 0.05) negative correlation ( r = −0.2) was noted between the spherical equivalent and total higher order root mean square (HO RMS) (from 3 rd to 5 th ) in the myopia group. The mean age in the emmetropic group was 25.04 ± 6.39 years. A statistically significant ( P ≤ 0.05) positive correlation was noted between age and total HO RMS in the emmetropia group. Comparison of HOAs between the myopia group and emmetropia group revealed a statistically significant difference ( P ≤ 0.05) in the mean value of vertical coma, fourth-order spherical aberration. The mean value of total HO RMS (third to fifth order aberrations) in the myopia and emmetropia groups was found to be 0.444 ± 0.167, 0.412 ± 0.156 μm, respectively. CONCLUSION: We found more total levels of HOAs in myopic eyes compared to emmetropes.
Govind et al. (Thu,) studied this question.