Assessment research on the consistency between corneal curvature instrument and computer optometry instrument for corneal curvature of patients before underwent LASIK
10.3969/j.issn.1672-8270.2024.06.022
- VernacularTitle:角膜曲率仪与电脑验光仪对准分子激光原位角膜磨镶术前患者角膜曲率一致性的评估研究
- Author:
Yu ZHANG
1
;
Jing DU
;
Lizhao WANG
Author Information
1. 解放军联勤保障部队第九六九医院眼耳鼻喉科 呼和浩特 010051
- Keywords:
Corneal curvature;
Computer optometry instrument;
Laser-assisted in situ keratomarisis(LASIK);
Corneal curvature;
Consistency assessment
- From:
China Medical Equipment
2024;21(6):110-114
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To assess the consistency between corneal curvature instrument and computer optometry instrument for corneal curvature of patients before underwent laser-assisted in situ keratomarisis(LASIK).Methods:A total of 65 myopic patients(130 eyes)who planned to undergo LASIK at the 969th hospital of People's Liberation Army Joint Service Support Force from January to December 2022 were selected.Corneal curvature instrument and computer optometry instrument were applied to record corneal curvature,corneal curvature on the horizontal radial line(Kl),corneal curvature on the vertical radial line(K2)and average corneal curvature[(K1+K2)/2]values.Using the method of consistency evaluation measurement(Bland Altman)to analyze the consistency between two kinds of measurement methods of instrument.Results:There was no significant difference in corneal curvature values between computer optometry instrument and corneal curvature instrument.There were positive correlations in the K1,K2 and(K1+K2)/2 between two instruments(r=0.483,0.409,0.427,P<0.05),respectively.The mean d of the differences of the measured Kl,K2 and[(K1+K2)/2]values of corneal curvature between two kinds of instruments were respectively 42.094D,42.919D and 42.981D,and the standard deviation(SD)of the differences were respectively 2.113D,2.157D and 2.282D.The 95%CI were respectively(46.770-37.419),(47.148-38.691)and(47.145-38.508).Conclusion:There is favorable consistency between computer optometry instrument and corneal curvature instrument,and they can be used by mutual substitution.The applicability of the two instruments should be comprehensively considered in clinical work,so as to play its maximum role.
