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Related Experiment Video

Updated: Jun 5, 2025

Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
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Visual Quality and Accommodation With Novel Optical Designs for Myopia Control.

Sara Aissati1, Tianlun Zou1,2, Sabyasachi Goswami1,3

  • 1Center for Visual Science, University of Rochester, Rochester, NY, USA.

Translational Vision Science & Technology
|December 4, 2024
PubMed
Summary
This summary is machine-generated.

A novel two-zone multifocal contact lens (MP1) effectively reduced accommodative lag in young myopes, improving their accommodative response without compromising distance vision. This design shows promise for myopia control strategies.

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Area of Science:

  • Ophthalmology
  • Optometry
  • Visual Optics

Background:

  • Myopia control is crucial for preventing vision impairment.
  • Understanding accommodative response and visual performance is key to developing effective myopia control strategies.

Purpose of the Study:

  • To evaluate through-focus visual performance and accommodative response using three segmented multifocal contact lens designs for myopia control.
  • To compare these designs with single vision correction in young subjects.

Main Methods:

  • Utilized a monocular adaptive optics visual simulator (AOVS) with segmented multifocal patterns (MP1, MP2, MP3).
  • Measured high-contrast visual acuity (VA) and ocular aberrations.
  • Assessed accommodative lag under various accommodative demands (up to 4.5 D).

Main Results:

  • The MP1 design significantly decreased accommodative lag in myopes (P=0.03) compared to single vision.
  • Multifocal patterns reduced pupil diameter in myopes.
  • MP1 improved accommodative response in myopes without negatively impacting distance vision.

Conclusions:

  • The AOVS facilitated understanding of physiological and lens design interactions for custom corrections.
  • A center-distance design with peripheral positive power (MP1) shows potential for myopia control by managing peripheral focus and accommodation.
  • This two-zone contact lens design offers excellent visual quality and accommodative response, vital for myopia control lenses.