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Vision with different presbyopia corrections simulated with a portable binocular visual simulator.
Aiswaryah Radhakrishnan1, Daniel Pascual1, Susana Marcos1
1Laboratory of Visual Optics and Biophotonics, Instituto de Óptica, IO-CSIC, Consejo Superior de Investigaciones Científicas, Madrid, Spain.
Plos One
|August 21, 2019
Summary
This study developed a portable vision simulator to test presbyopic corrections. Monovision corrections provided the highest perceived visual quality for presbyopes.
Area of Science:
- Ophthalmology
- Optometry
- Vision Science
Background:
- Presbyopia affects near vision, necessitating corrective lenses.
- Patient satisfaction with presbyopic corrections varies.
- Different correction strategies exist, including monofocal, simultaneous vision, and monovision.
Purpose of the Study:
- To develop and evaluate a binocular, portable vision simulator for presbyopic corrections.
- To assess perceived visual quality and preference for various presbyopic correction types.
- To correlate perceptual scores with optical parameters.
Main Methods:
- A binocular vision simulator using synchronized tunable lenses was employed.
- Seventeen binocular presbyopic corrections were simulated and tested on 8 subjects.
- Perceptual scores (0-5) and preferences were collected for far, intermediate, and near distances.
Main Results:
- Monovision corrections yielded the highest average perceptual scores (4.4±0.3).
- Simultaneous Vision and Monovision showed minimal difference between far and near vision.
- Perceptual scores strongly correlated with the percentage of energy in focus (R=0.64, p<0.0001).
Conclusions:
- A novel binocular vision simulator allows rapid, non-invasive simulation of presbyopic corrections.
- The simulator aids in the systematic clinical evaluation of presbyopia correction strategies.
- Monovision appears to offer superior visual quality for presbyopic individuals.
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