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Review Article

Image-Guided Marking versus Manual Marking in Phacoemulsification with Toric Intraocular Lens (IOL) Implantation: A Systematic Review and Meta-Analysis of Randomized Clinical Trials

, , , , , & show all
Pages 60-65 | Received 16 May 2023, Accepted 22 Jun 2023, Published online: 03 Jul 2023
 

ABSTRACT

Purposes

The purpose of this meta-analysis is to systematically compare the alignment accuracy and post uncorrected distance visual acuity (UDVA) between image-guided marking and manual marking for toric intraocular lens (IOL) in cataract surgery.

Methods

This work was done through the data searched from the PubMed, EMBASE and the Cochrane Library. The Cochrane Handbook was also used to evaluate the quality of the included studies. In addition, this meta-analysis was performed using Revman 5.4 software.

Results

A total of 6 randomized controlled trials (RCTs) were included. Compared with manual marking group, image-guided marking group had less toric IOL axis misalignment (MD, −1.98; 95%CI, −3.27 to −0.68; p = .003), less postoperative astigmatism (MD, −0.13; 95%CI, −0.21 to −0.05; p = .001), better postoperative UDVA (MD, −0.02; 95%CI, −0.04 to −0.01; p = .0003) and smaller difference vector (MD, −0.10; 95%CI, −0.14 to −0.06; p(0.00001). For the proportion of patients with residual refractive cylinder within 0.5 D, there was no difference between two groups (p = .07).

Conclusion

Image-guided marking is prior to manual marking. As it can bring less toric IOL axis misalignment, less postoperative astigmatism, better postoperative UDVA and smaller difference vector for the patients with toric IOL implantation.

DISCLOSURE STATEMENT

The author(s) have declared that no competing interests exist.

No financial disclosures related to the contents of the manuscript.

Additional information

Funding

This study was funded by the Research Foundation of Aier Eye Group (AF2202D09).

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