[1]林吉娇,刘福义,刘明明,等.以角膜顶点或瞳孔为中心不同区域全角膜散光及矢量的分析[J].眼科新进展,2024,44(6):458-463.[doi:10.13389/j.cnki.rao.2024.0089]
 LIN Jijiao,LIU Fuyi,LIU Mingming,et al.Analysis of total corneal astigmatism and vectors in different regions centered on the corneal apex or pupil[J].Recent Advances in Ophthalmology,2024,44(6):458-463.[doi:10.13389/j.cnki.rao.2024.0089]
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《眼科新进展》[ISSN:1003-5141/CN:41-1105/R]

卷:
44卷
期数:
2024年6期
页码:
458-463
栏目:
应用研究
出版日期:
2024-06-03

文章信息/Info

Title:
Analysis of total corneal astigmatism and vectors in different regions centered on the corneal apex or pupil
作者:
林吉娇刘福义刘明明姜雅琴
261000 山东省潍坊市,山东第二医科大学(临床医学院)(林吉娇);262699 山东省潍坊市,潍坊内分泌与代谢病医院(刘福义);250021 山东省济南市,济南市第二人民医院(刘明明);261041 山东省潍坊市,潍坊眼科医院(姜雅琴)
Author(s):
LIN Jijiao1LIU Fuyi2LIU Mingming3JIANG Yaqin4
1.Shandong Second Medical University,School of Clinical Medicine,Weifang 261000,Shandong Province,China
2.Weifang Endocrine and Metabolic Disease Hospital,Weifang 262699,Shandong Province,China
3.The Second People’s Hospital of Jinan Municipality,Jinan 250021,Shandong Province,China
4.Weifang Eye Hospital,Weifang 261041,Shandong Province,China
关键词:
白内障全角膜散光角膜顶点瞳孔矢量分析
Keywords:
cataract total corneal astigmatism corneal apex pupil vector analysis
分类号:
R776.1
DOI:
10.13389/j.cnki.rao.2024.0089
文献标志码:
A
摘要:
目的 分析不同区域模式下以角膜顶点或瞳孔为中心测得的全角膜散光及矢量的差异。
方法 横断面研究。纳入2021年10月至2022年6月在潍坊眼科医院行白内障超声乳化吸除联合人工晶状体植入术的年龄相关性白内障患者102例(102眼)。术前行Pentacam眼前节生物测量仪检查,收集以角膜顶点或瞳孔为中心2 mm、4 mm、6 mm角膜直径时圆环和圆区模式下的全角膜散光值及轴位进行比较,并进行矢量分析。
结果 在相同圆环模式下,以角膜顶点为中心与以瞳孔为中心比较,6 mm角膜直径时散光值差异有统计学意义(P<0.05);在相同圆区模式下,以角膜顶点为中心与以瞳孔为中心比较,2 mm、4 mm、6 mm角膜直径时散光值差异均有统计学意义(均为P<0.05)。以角膜顶点为中心,圆环与圆区模式下比较,2 mm、6 mm角膜直径时散光值差异有统计学意义(均为P<0.05);以瞳孔为中心,圆环与圆区模式下比较,2 mm、4 mm、6 mm角膜直径时散光值差异均有统计学意义(均为P<0.05)。在相同测量中心圆环与圆区模式下比较,及在相同区域模式不同测量中心比较,2 mm、4 mm、6 mm角膜直径时散光轴位差异均无统计学意义(均为P>0.05)。矢量分析法结果显示:在圆环模式下,以角膜顶点为中心与以瞳孔为中心比较,4 mm角膜直径时Y轴上分量的全角膜散光差异有统计学意义(P<0.05);以瞳孔为中心,圆环与圆区模式下比较,4 mm角膜直径时在Y轴上分量的全角膜散光差异有统计学意义(P<0.05);余差异均无统计学意义(均为P>0.05)。
结论 以角膜顶点和瞳孔为中心测量的全角膜散光值具有一定的差异,圆环和圆区模式测量的全角膜散光值具有一定的差异,但其散光轴位均无明显差异。矢量分析法与传统方法分析全角膜散光的结果存在一定差异。
Abstract:
Objective To analyze the differences in total corneal astigmatism (TCA) and vectors in different regions centered on the corneal apex or pupil.
Methods This cross-sectional study enrolled 102 patients (102 eyes) with age-related cataracts who underwent phacoemulsification combined with intraocular lens implantation at the Weifang Eye Hospital from October 2021 to June 2022. Before surgery, anterior segment biometrical examinations were performed using Pentacam to collect the TCA and axes at 2 mm, 4 mm, and 6 mm diameter rings and zones with the corneal apex or pupil as the center, and vector analysis was made.
Results In the ring mode, a significant difference was observed between the corneal apex-centered and pupil-centered astigmatism values for the 6 mm diameter (P<0.05). In the zone mode, there were statistically significant differences between the corneal apex-centered and pupil-centered astigmatism values for the 2 mm, 4 mm, and 6 mm diameters (all P<0.05). The analysis of the zone and ring modes centered on the corneal apex showed that there were statistically significant differences in astigmatism values for the 2 mm and 6 mm diameters (both P<0.05). The analysis of the zone and ring modes centered on the pupil showed that there were statistically significant differences in astigmatism values for the 2 mm, 4 mm, and 6 mm diameters (all P<0.05). In the same center, there were no statistically significant differences in astigmatism axes for 2 mm, 4 mm, and 6 mm diameters under the ring and zone modes (all P>0.05). In the same mode, there were no statistically significant differences in astigmatism axes for 2 mm, 4 mm, and 6 mm diameters centered on the corneal apex and pupil (all P>0.05). Vector analysis showed that in the ring mode, the apex-centered to pupil-centered TCA difference of 4 mm on the Y axis was statistically significant (P<0.05). The comparison between the zone and ring centered on the pupil showed that the TCA difference of 4 mm on the Y axis was statistically significant (P<0.05), whereas the other differences were not statistically significant (all P>0.05).
Conclusion The TCA shows a mild difference between the corneal apex-centered and pupil-centered modes and between the ring and zone modes, but the astigmatism axis has no obvious difference. There are some differences between vector analysis and conventional analysis of TCA.

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备注/Memo

备注/Memo:
山东省医药卫生科技发展计划项目(编号:202007021388)
更新日期/Last Update: 2024-06-05