Intraoperative Degree Misalignment in Toric Intraocular Lens Implantation When Using Conventional Compared to Digital...

Area of Science:

• Ophthalmology
• Surgical Technology
• Biomedical Engineering

Background:

• Accurate intraoperative marking is crucial for refractive outcomes.
• Digital marking systems offer potential advantages over manual methods.
• Evaluating the precision of digital versus manual marking is essential for optimizing cataract surgery.

Purpose of the Study:

• To compare the accuracy of digital marking versus manual marking intraoperatively.
• To assess the difference in degrees between digital and manual markers during surgery.

Main Methods:

• Prospective, comparative, observational study involving 41 eyes.
• Preoperative biometry using Argos SS-OCT biometer.
• Comparison of intraoperative digital marking (VERION system) with manual marking (ToriCAM and Mendez marker).

Main Results:

• The absolute difference between digital and manual marking was 6.6 ± 5.2 degrees.
• Mean absolute IOL rotation was 3.5 ± 2.9 degrees.
• Good postoperative refractive accuracy was achieved with digital marking.

Conclusions:

• Digital marking, integrated with the Argos biometer, demonstrates high precision.
• Manual marking exhibited significant misalignment compared to digital marking.
• Digital marking may reduce the incidence of postoperative residual astigmatism.