Dogan Mehmethan, Elgin Ufuk, Sen Emine, Tekin Kemal, Yilmazbas Pelin
Ulucanlar Eye Training and Research Hospital, 06240, Ankara, Turkey.
Ulucanlar Eye Research Hospital, Ankara, Turkey.
Int Ophthalmol. 2019 Feb;39(2):335-340. doi: 10.1007/s10792-017-0816-8. Epub 2017 Dec 29.
To compare the anterior segment parameters of myopic, hyperopic, and emmetropic children by using optical biometry.
This prospective cross-sectional study included 150 eyes of 150 children between 6 and 16 years old. The eyes were divided into three groups according to their spherical equivalent (SE) refractive error values as myopic [between - 1.0 and - 6.0 diopter (D)], emmetropic (between + 0.50 and - 0.50 D), and hyperopic (between + 1. 0 and + 3.0 D). Axial length (AL), central corneal thickness, anterior chamber depth (ACD), lens thickness (LT), and mean keratometry (K mean) measurements were obtained by an optical biometry (LenStar LS 900, Haag Streit Diagnostics) were compared between the groups.
There were no statistically significant differences regarding the ages and genders of the participants between the groups (p > 0.05). The mean SE refractive error values were - 2.20 ± 0.71 D in myopic, - 0.08 ± 0.49 D in emmetropic, and + 2.06 ± 0.53 D in hyperopic eyes. The mean AL values were 24.50 ± 0.69, 23.41 ± 0.61, and 22.33 ± 0.61 mm, respectively, in myopic, emmetropic, and hyperopic eyes (p < 0.001). The mean ACD values were 3.94 ± 0.22, 3.78 ± 0.23, and 3.45 ± 0.20 mm, respectively, in myopic, emmetropic, and hyperopic eyes (p < 0.001). The mean LT values were 3.56 ± 0.20, 3.43 ± 0.17, and 3.31 ± 0.12 mm, respectively, in myopic, emmetropic, and hyperopic eyes (p < 0.001). There were no significant differences in the other parameters between the groups.
Refractive errors are the main factors those affect anterior segment parameters and AL in children and the most severely affected parameters were found to be the AL, ACD, and LT values.
通过光学生物测量法比较近视、远视和正视儿童的眼前节参数。
这项前瞻性横断面研究纳入了150名6至16岁儿童的150只眼。根据等效球镜（SE）屈光不正值将眼睛分为三组：近视组（-1.0至-6.0屈光度（D））、正视组（+0.50至-0.50 D）和远视组（+1.0至+3.0 D）。通过光学生物测量仪（LenStar LS 900，Haag Streit Diagnostics）测量眼轴长度（AL）、中央角膜厚度、前房深度（ACD）、晶状体厚度（LT）和平均角膜曲率（平均K值），并在组间进行比较。
各组参与者的年龄和性别无统计学显著差异（p>0.05）。近视组的平均SE屈光不正值为-2.20±0.71 D，正视组为-0.08±0.49 D，远视组为+2.06±0.53 D。近视、正视和远视眼的平均AL值分别为24.50±0.69、23.41±0.61和22.33±0.61 mm（p<0.001）。近视、正视和远视眼的平均ACD值分别为3.94±0.22、3.78±0.23和3.45±0.20 mm（p<0.001）。近视、正视和远视眼的平均LT值分别为3.56±0.20、3.43±0.17和3.31±0.12 mm（p<0.001）。组间其他参数无显著差异。
屈光不正为影响儿童眼前节参数和眼轴长度的主要因素，其中受影响最严重的参数为眼轴长度、前房深度和晶状体厚度值。
