Objective:

To evaluate whether a simple preoperative vision test can predict which patients with presbyopia are likely to adapt successfully to laser blended vision.

Approach:

• Study Design: The study involved a standard phoropter-based assessment to maximize binocular distance vision, followed by defocusing one eye to simulate short-sightedness. Patients rated their vision quality, and the process was repeated for the opposite eye.
• Patient Selection: 1,341 patients with varying baseline refractive errors were included, with 30 patients (1.66%) identified as unsuitable for treatment based on preoperative testing.

Key Findings:

• 96.9% of patients who proceeded to surgery successfully adapted to laser blended vision, according to research presented at the ESCRS Congress.
• The preoperative test demonstrated a high predictive value for tolerance to blended vision.
• The assessment also helped determine ocular dominance for treatment planning.

Interpretation:

A simple, low-tech assessment may help screen patients for suitability for laser blended vision surgery.

Limitations:

• The study was conducted in a specific clinical setting and may not be generalizable to all populations.
• The assessment relies on subjective patient ratings, which may vary.

Conclusion:

The study provides information for patient selection and treatment planning in laser blended vision surgery.

Sources:

• ESCRS Congress