Back to Search Start Over

Comparative meta-analysis of toric intraocular lens alignment accuracy in cataract patients: Image-guided system versus manual marking

Authors :
Wu Jiang
Zhuoling Lin
Fengqi Zhou
Jing Li
Xiaoyan Li
Qiwei Wang
Haotian Lin
Weirong Chen
Source :
Journal of Cataract and Refractive Surgery. 45:1340-1345
Publication Year :
2019
Publisher :
Ovid Technologies (Wolters Kluwer Health), 2019.

Abstract

This meta-analysis studied toric intraocular lens (IOL) alignment accuracy using image-guided and manual marking methods by comparing the axis misalignment of toric IOLs, percentage of eyes with toric IOL axis misalignment within ±5 degrees, postoperative astigmatism, difference vector, and postoperative uncorrected distance visual acuity. The methodological quality was assessed using the modified Quality Assessment of Diagnostic Accuracy Studies-2 tool. Continuous variables were analyzed using weighted mean differences, and dichotomous variables were compared using the odds ratio. Five studies comprising a total of 257 eyes were analyzed. For heterogeneity, neither sensitivity analysis nor the Egger test detected statistical findings. The image-guided marking group had smaller toric IOL axis misalignment (P .00001), less postoperative astigmatism (P = .003), and a smaller difference vector (P .00001) than the manual marking group. The overall evidence from the studies indicates that image-guided marking is better than manual marking, resulting in less axis misalignment, a smaller difference vector, and less postoperative astigmatism.

Details

ISSN :
08863350
Volume :
45
Database :
OpenAIRE
Journal :
Journal of Cataract and Refractive Surgery
Accession number :
edsair.doi.dedup.....3788b79c85c5fef361d1c6498ae64ca1