2University of Health Science, Ulucanlar Eye Education and Research Hospital, Ankara, Türkiye, Ankara DOI : 10.37844/glauc.cat.2022.17.13 Purpose: It was aimed to compare the anterior segment findings between the cases with refractive error and the emmetropic cases without refractive error.
Materials and Methods: Overall, 311 eyes of 311 participants were included in this cross-sectional study. In all participants, the parameters including flat keratometry (K1), step keratometry (K2), mean keratometry (Km), maximum keratometry (Kmax), central corneal thickness (CCT), apex corneal thickness (ACT), thinnest corneal thickness (TCT), cornea volume (CV), anterior chamber volume (ACV), anterior chamber depth (ACD) and anterior chamber angle (ACA) were measured using Pentacam HR.
Results: Of the participants, 81 (26%) were emmetropic (Group 1) while 71 (22.8%) had myopia (Group 2), 74 (23.8%) had hypermetropia (Group 3), 67 (21.5%) had myopic astigmatism (Group 4), and 18 (5.8%) had hypermetropic astigmatism (Group 5). Significant differences were found in anterior chamber parameters (ACA, ACV, ACD) between groups (p<0.001, for all). Regarding corneal parameters, there were significant differences in K2, Kmax and KV (p<0.001, p<0.001, p<0.003; respectively) while there were no significant differences K1 and Km values (p=0.590, p=0.140; respectively) between groups.
Conclusion: Myopic eyes had higher ACA, ACV, and ACD values compared to hyperopic and emmetropic eyes. ACV and ACD parameters were significantly lower in hyperopic eyes than emmetropic eyes.
Keywords : refractive error, cornea, anterior segment, pentacam HR