Clinical Outcomes Using a Novel Image-Guided Planning System in Patients With Cataract and IOL Implantation.

Area of Science:

• Ophthalmology
• Refractive Surgery
• Biomedical Engineering

Background:

• Astigmatism is a common visual impairment often addressed during cataract surgery.
• Toric intraocular lenses (IOLs) and corneal incisions are surgical options for astigmatism correction.
• Image-guided systems aim to improve surgical precision and outcomes.

Purpose of the Study:

• To evaluate the effectiveness of the VERION system in correcting preexisting astigmatism.
• To determine the proportion of eyes achieving 0.50 diopters (D) or less of residual refractive cylinder after surgery.
• To compare outcomes between different IOL types and surgical approaches.

Main Methods:

• Eyes with astigmatism were divided into four groups: no laser, toric IOL, monofocal IOL, and multifocal IOL.
• All groups utilized the VERION measurement module and digital markers.
• Surgical procedures included toric IOL implantation and, in some groups, laser-assisted corneal incisions.
• Outcomes were assessed at 3 months post-surgery.

Main Results:

• 71.6% of non-laser treated eyes achieved ≤0.50 D residual refractive cylinder.
• 74.5% of toric IOL eyes achieved ≤0.50 D residual refractive cylinder.
• Manifest refraction spherical equivalent (MRSE) accuracy of ≤0.50 D was achieved in 69.6% to 82.0% of eyes across groups.

Conclusions:

• The VERION image-guided surgical planning system demonstrated effectiveness in correcting preexisting astigmatism.
• Accurate correction was evidenced by low residual refractive astigmatism and MRSE at 3 months.
• The system supports precise IOL implantation during refractive cataract surgery.