■要确定球面像差,瞳孔大小,和其他关键的屈光和地形参数在一大群埃及白内障手术候选人,并研究球面像差与其他可能相关的参数之间存在的任何关系。
■这是一个横截面,在艾因沙姆斯大学医院进行的描述性研究,开罗,埃及。该研究是在1658名白内障手术候选人的右眼上进行的。平均角膜球差[Z4]和瞳孔直径,两者都是明视的[P.瞳孔]和中视[M.瞳孔],通过Oculus角膜描记器3测量,而白色到白色角膜直径[WTW],平均角膜曲率测量读数[平均K],轴向长度测量值[AL]和前房深度[ACD]均来自IOLMaster500.
■平均年龄为65±11.3岁。Z4的平均值为+0.26±0.12μm[95%置信区间“CI”(0.2570-0.2681)]。测量参数的平均值为:P.Pupil2.43±0.87mm[95%CI(2.3867-2.4700)],M.瞳孔4.61±0.91mm[95%CI(4.5683-4.6557)],WTW11.72±0.44mm[95%CI(11.6969-11.7394)],平均K43.89±1.89D[95%CI(43.7938-43.9701)],AL24.23±2.21mm[95%CI(24.1118-24.3166)],和ACD3.16±0.43mm[95%CI(3.1414-3.1827)]。在Z4和每个年龄之间发现了微弱的统计学显着相关性(r=0.049,p=0.044),平均K(r=0.191,p<0.001),和ACD(r=0.122,p<0.001)。多变量分析表明Z4与平均K(β系数=0.091)和ACD(β系数=0.130)之间的关系较弱,r2=0.024。
■这是角膜球差的第一份规范性数据报告[Z4],瞳孔大小,以及古老的埃及人口中相关的屈光和地形参数。检测到的相关性具有弱的临床相关性,并且否定了Z4与所研究的屈光和地形参数之间存在的显着关系。
UNASSIGNED: To determine the spherical aberration, pupil size, and other key refractive and topographic parameters in a large cohort of Egyptian cataract surgery candidates, and to investigate any existent relations between the spherical aberration and other possibly related parameters.
UNASSIGNED: This is a cross-sectional, descriptive study that was conducted at Ain Shams University Hospitals, Cairo, Egypt. The study was performed on the right eyes of 1658 cataract surgery candidates. The mean corneal spherical aberration [Z4] and the pupil diameter, both photopic [P. Pupil] and mesopic [M. Pupil], were measured by the Oculus Keratograph 3, while the white-to-white corneal diameter [WTW], average keratometric readings [average K], axial length measurements [AL] and Anterior Chamber Depth [ACD] were all obtained from the IOL Master 500.
UNASSIGNED: The mean age was 65 ± 11.3 years. The mean value of the Z4 was +0.26 ± 0.12 μm [95% Confidence Interval \"CI\" (0.2570-0.2681)]. The mean values of the measured parameters were: P. Pupil 2.43 ± 0.87 mm [95% CI (2.3867-2.4700)], M. Pupil 4.61 ± 0.91 mm [95% CI (4.5683-4.6557)], WTW 11.72 ± 0.44 mm [95% CI (11.6969-11.7394)], average K 43.89 ± 1.89 D [95% CI (43.7938-43.9701)], AL 24.23 ± 2.21 mm [95% CI (24.1118-24.3166)], and ACD 3.16 ± 0.43 mm [95% CI (3.1414-3.1827)]. Weak statistically significant correlations were found between the Z4 and each of age (r = 0.049, p = 0.044), average K (r = 0.191, p < 0.001), and ACD (r = 0.122, p < 0.001). Multivariate analysis showed weaker relations between Z4 and both average K (beta coefficient= 0.091) and ACD (beta coefficient= 0.130), with an r2 = 0.024.
UNASSIGNED: This is the first normative data report of corneal spherical aberration [Z4], pupil size, and related refractive and topographic parameters in an old Egyptian population. The detected correlations have a weak clinical relevance and negate the existence of significant relations between the Z4 and the studied refractive and topographic parameters.