Lianyungang Maternal and Child Health Hospital, Lianyungang, 222000, Jiangsu, China.
Sci Rep. 2021 Jan 13;11(1):1018. doi: 10.1038/s41598-020-80106-6.
To determine the distribution of ocular residual astigmatism (ORA) in astigmatic eyes and the influence on the anterior corneal (ACA) and refractive astigmatism (RA). A total of 165 children met the inclusion criteria. Right eyes' data were analyzed. Using Thibos vector analysis to calculate ORA. Spearman correlation analysis was used to obtain the correlation between the magnitude of ORA, ACA and RA. The median magnitude of ORA in astigmatic eyes was 0.57 D, with interquartile range was 0.42 D. And they were main against-the-rule (57.6-75.8%) and oblique astigmatism (13.9-34.5%) ORA. The ORA in 140 eyes (84.8%) acted as an offset to ACA, meanwhile, 25 eyes (15.2%) superimposed it. About 98% (97.9-98.4%) against-the-rule and 75% (73.9-82.5%) oblique ORA counteracted ACA, nevertheless, all with-the-rule ORA had a superimposed effect on ACA. For with-the-rule ACA, about 86% (85.4-85.9%) ORA worked to offset it. There was statistically correlations between ORA and ACA (r = 0.17, P = 0.03), ORA and RA (r = - 0.27, P = 0.001). The magnitude of ocular residual astigmatism was relatively small in children's astigmatic eyes. Both against-the-rule and oblique ORA can counteract with-the-rule ACA.
为了确定散光眼中眼残余散光（ORA）的分布以及对前角膜（ACA）和屈光性散光（RA）的影响。共有 165 名符合纳入标准的儿童。分析右眼数据。使用 Thibos 向量分析来计算 ORA。采用 Spearman 相关分析获得 ORA 大小与 ACA 和 RA 之间的相关性。散光眼中 ORA 的中位数大小为 0.57 D，四分位间距为 0.42 D。它们主要是逆规性（57.6-75.8%）和斜散光（13.9-34.5%）ORA。140 只眼（84.8%）的 ORA 作为 ACA 的偏移，同时 25 只眼（15.2%）叠加。约 98%（97.9-98.4%）的逆规性和 75%（73.9-82.5%）的斜散光对抗 ACA，但所有顺规性 ORA 对 ACA 均有叠加作用。对于顺规性 ACA，约 86%（85.4-85.9%）的 ORA 抵消了它。ORA 与 ACA（r=0.17，P=0.03）和 ORA 与 RA（r=-0.27，P=0.001）之间存在统计学相关性。儿童散光眼中眼残余散光的大小相对较小。逆规性和斜散光均可对抗顺规性 ACA。
