Clinical Evaluation for LASIK Presbyopia Correction Using Micro-Monovision and Modulation of Spherical Aberration
Purpose
To investigate one-year clinical outcomes in terms of binocular and monocular visual acuities and visual quality among ammetropic presbyopic eyes that underwent LASIK with PRESBYOND treatment (Carl Zeiss Meditec) by modifying preexisting spherical aberration and using micro-monovision.
Methods
A prospective data of 40 myopic and hyperopic patients who underwent Presby-LASIK (PRESBYOND )were analyzed for change to refraction, corrected distance visual acuity (CDVA), uncorrected distance visual acuity (UDVA), corrected near visual acuity (CNVA), uncorrected near visual acuity (UNVA ), corneal asphericity, contrast sensitivity and higher-order aberrations (HOA).
Results
Mean age was 52 years (45-61 years). All patients reached a binocular postoperative UDVA >20/25. Ninety four percent had a binocular uncorrected reading ability of 20/32. The LASIK treatment provided a high level of spectacle independence (95% of cases). The visual quality loss was no significant.
Conclusion
Results find the Presby-LASIK procedure (PRESBYOND) significantly reduces refractive error and effectively improves near vision in presbyopic patients, while also improving intermediate and distance vision.