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Multifocal acceptance score to evaluate vision: MAS-2EV.

Xoana Barcala1, Maria Vinas2, Mercedes Romero2

  • 12Eyes Vision, Madrid, Spain. xbarcala@2eyesvision.com.

Scientific Reports
|January 15, 2021
PubMed
Summary
This summary is machine-generated.

We developed the Multifocal Acceptance Score (MAS-2EV) to assess vision with presbyopic corrections. This new metric helps select the best vision correction for patients by evaluating visual quality and imbalance.

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Area of Science:

  • Ophthalmology
  • Vision Science
  • Optometry

Background:

  • Presbyopia significantly impacts near vision, necessitating effective correction strategies.
  • Current methods for evaluating multifocal corrections can be subjective and time-consuming.
  • Objective and repeatable metrics are crucial for optimizing visual outcomes in presbyopic patients.

Purpose of the Study:

  • To introduce and validate a novel metric, the Multifocal Acceptance Score (MAS-2EV), for evaluating visual performance with various presbyopic corrections.
  • To assess the repeatability, sensitivity, and clinical utility of the MAS-2EV.
  • To compare the effectiveness of different binocular vision corrections using the MAS-2EV.

Main Methods:

  • The MAS-2EV was developed using a set of naturalistic images presented under day/night conditions and a near stereo target.
  • Subjects (young cyclopleged and presbyopic) were tested with different binocular corrections (monofocal, bifocal, monovision) using soft contact lenses or a vision simulator.
  • MAS-2EV scores were quantified across multiple visual performance metrics and represented graphically.

Main Results:

  • The MAS-2EV demonstrated sufficient repeatability and sensitivity for differentiating between corrections with minimal testing.
  • Binocular bifocal corrections generally yielded the lowest visual imbalance and highest near stereo benefit.
  • Both bifocal and monovision corrections were ranked first by similar proportions of subjects, indicating varied individual preferences.

Conclusions:

  • The MAS-2EV is a repeatable, sensitive, and clinically applicable tool for evaluating presbyopic corrections.
  • The metric aids in selecting optimal prospective corrections for patients before lens implantation or fitting.
  • MAS-2EV, especially with visual simulators, offers a valuable method for personalized presbyopic correction selection.