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Contrast Sensitivity and Stereopsis Outcomes Following LASIK Presbyopia Correction Based on the Corneal Aberration
Joanna Wierzbowska1,2, Zofia Pniakowska3,4, Anna M Roszkowska5,6
1Department of Ophthalmology, Military Institute of Medicine-National Research Institute in Warsaw, 04-141 Warsaw, Poland.
Journal of Clinical Medicine
|February 13, 2025
Summary
Laser vision correction for presbyopia can impact contrast sensitivity and stereopsis. Presbyond® Laser Blended Vision appears safe for contrast sensitivity, but outcomes for stereopsis vary, necessitating further research on other multifocal methods.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Visual Optics
Background:
- Modern presbyopia correction uses laser ablation techniques to modify corneal shape for improved depth of focus.
- Potential risks include anisometropia and higher-order aberrations affecting postoperative stereopsis and contrast sensitivity (CS).
Purpose of the Study:
- To systematically review studies published up to 2023 on contrast sensitivity and stereopsis following LASIK for presbyopia treatment.
- To assess the impact of various laser-based presbyopia correction methods on visual functions.
Main Methods:
- Systematic literature search of PubMed, Scopus, and Web of Science databases adhering to PRISMA 2020 guidelines.
- Inclusion of original research evaluating laser presbyopia correction outcomes, including pre- and postoperative stereopsis and CS assessments.
- Risk of bias evaluated using the Quality Assessment Tool.
Main Results:
- Thirteen studies involving 856 presbyopes (1712 eyes) were analyzed, with follow-up ranging from 3 to 30 months.
- Presbyond® Laser Blended Vision and PresbyMAX® Hybrid showed improved or unchanged contrast sensitivity.
- Conflicting results were reported for stereopsis with Presbyond® LBV; some methods like aspheric monovision LASIK led to decreased stereopsis.
Conclusions:
- Presbyond® Laser Blended Vision demonstrates safety regarding contrast sensitivity preservation in presbyopia treatment.
- Further research is required to understand the effects of aspheric corneal ablation and other multifocal induction methods on stereopsis and contrast sensitivity.
