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Six month experience of presbyopia correction with a hybrid µ-monovision approach in LASIK using multifocal bi-aspheric ablation profiles

Poster Details

First Author: E.Sunay TURKEY

Co Author(s):    T. Akin   O. Kavalcioglu   A. Akyurt        

Abstract Details


To evaluate the postoperative clinical outcomes in terms of binocular and monocular uncorrected visual acuities and visual quality among presbyopic patients that have undergone LASIK treatments.


Veni Vidi Göz, Istanbul, Turkey


180 presbyopic patients (360 eyes) (53±2, range 44 to 58) with distance refraction SEQ -0.75 to -4.75D (+0.25 to +4.25 D) and astigmatism up to 3 D with presbyopic add +1.50 to +2.75D were analysed. PresbyMAX hybrid treatments were planned with CAM software and ablations performed using the SCHWIND AMARIS flying-spot excimer laser system (SCHWIND eye-tech). LASIK with the pendular microkeratome (SCHWIND eye-tech) has been carried out in all cases. Pre- and postoperative wavefront analysis as well as preoperative pupillometry (SCHWIND SIRIUS) were performed. 6th month clinical outcomes were evaluated in terms of refractive outcome, visual acuity, and corneal wavefront.


The patients showed spherical equivalent power of -0.33±0.48D in distance eye (DE) and -0.68±0.27D in near eye (NE). Residual cylinder refraction was -0.32±0.30D in DE and -0.29±0.35D in NE. Uncorrected distance visual acuity (UDVA) was 0.1±0.2 LogMAR (20/28) in DE and 0.2 to +1.0 LogMAR (20/35-20/200) in NE. 86% achieved 0.0 logMAR binocular corrected distance visual acuity (CDVA) and 0.1 logRAD or better binocular corrected near visual acuity (CNVA). Uncorrected near visual acuity (UNVA) demonstrated 0.0 LogRAD to +0.5 LogRAD(>J1–J8) in DE and 0.1±0.3 LogRAD (J2.8) in NE. The targeted anisometropia of 0.75D(µ-monovision approach) between DE and NE was achieved.


The PresbyMAX hybrid approach with target anisometropia of 0.75D between DE and NE was achieved. Near visual acuity increases fast (from one week to one month) when performing an intrastromal PresbyMAX correction. Distance visual acuity recovers more slowly and took up to 3 months. Presbyopia correction requires a careful examination before operation, with use of strict exclusion criteria and detailed explanation about visual recovery to the patient.

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