Abstract
Purpose :
The sheer number of presbyopic candidates who might seek permanent freedom from spectacle has stimulated development of various methods for surgical correction. Purpose of this study is to analyze early clinical outcomes of aspheric micro-monovisionLASIK for correction of presbyopia and myopia with or without astigmatism.
Methods :
This study was a prospective, noncomparative case series of 50 eyes of 25 patients with a mean age 44±4 years (range 38 to 62 years) treated bilaterally using aspheric micro-monovision protocol.The target refraction was plano for distance vision eye and between -0.75 to -2.00 diopters (D) for near vision eye. Meanwhile the depth of field (DOF)increasedvia induced greater amounts of spherical aberration to provide a blend zone, which enable continuous distance to intermediate to near vision between the two eyes.Clinical outcomes and satisfaction-score questionnaires were evaluatedafter surgery.
Results :
Three months after surgery,the mean spherical equivalent (SE) refraction in distance eye was 0.03±0.20 D, while the attempted and achieved SE in near eye were -1.34±0.26 D and -1.18±0.34 D respectively. Ninety-four percent of eyes were within 0.50 D of target defocus. The uncorrected distance visual acuity (UDVA) after surgery was -0.126±0.05logMAR (20/14.3), 0.174±0.11logMAR (20/31), and -0.141±0.05logMAR (20/13.8), for distance eyes, near eyes and binocularly, respectively.Ninety percent of patients achieved simultaneously uncorrected distance visual acuity 0.0 logMAR(20/20) or better and uncorrected near visual acuity J2 or better. Minus-Lens–Stimulated accommodative amplitude changed from 4.48D to 5.02 D (P＜0.05). Satisfaction questionnaire scores was 93.00±5.3.
Conclusions :
This aspheric micro-monovision protocol provided a well-tolerated and effective means for treating myopic astigmatism and alleviating presbyopic symptoms simultaneously.
This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.