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Patient satisfaction and visual outcomes of presbyopia correction by LASIK using nonlinear aspheric ablation profiles with micro-monovision

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Session Details

Session Title: Presented Poster Session: Presbyopia

Session Date/Time: Saturday 05/09/2015 | 15:00-16:30

Paper Time: 15:00

Venue: Poster Village: Pod 2

First Author: : N.Quesnel CANADA

Co Author(s): :    C. Ferremi   M. Boileau   L. Lalonde   K. Funk   N. Sylvestre   S. Lor

Abstract Details


To document patient satisfaction and visual outcomes of ametropia (myopia, hyperopia with or without astigmatism) and presbyopia correction by Lasik micro-monovision at least one year (between 14 and 39 months) after surgery. To test for a correlation between satisfaction levels and pre surgical ametropia or visual outcomes.


Iris Ophthalmology Clinic, Laval, Canada


This retrospective study included 84 patients aged 48.7±3.2 years (range: 41 to 56 years). The CRS-Master Laser Blended Vision software was used to generate ablation profiles for the Zeiss Meditec MEL80 laser. Target refraction was between -1.00 and -1.75 for the near eyes. Postoperative ametropia, uncorrected visual acuity (UCVA) at far and near (40 cm) were computed. To subjectively evaluate satisfaction and visual symptoms, patients answered a questionnaire (sent by mail) consisting of 9 questions related to their satisfaction, quality of vision and their need to wear glasses for daily activities. The SPSS software was used for statistical analysis.


At the last visual assessment, 90.9% of myopic patients and 100% of hyperopic patients achieved a binocular distance UCVA of 6/6 or better. For near (40 cm), 88 % could read 0.37M and 100% could read 0.62M or better; but 50% of patients reported that glasses could improve their near vision. An enhancement laser procedure (flap lift) was performed within one year of the initial procedure for 16% of patients. No significant correlations were found between satisfaction and age, preoperative degree of myopia, residual ametropia or visual symptoms (p≥0.06). Only 1.7% of patients reported dissatisfaction. Furthermore, 1.5% of myopes and 6.7% of hyperopes will not recommend the same procedure to a relative. Myopes are more satisfied than hyperopes (p=0.007).


In this group of patients, at least one year after the surgery, the high satisfaction level and good visual outcomes following the presby-LASIK indicate that the micro-monovision protocol was an effective procedure for treating presbyopic patients. Further studies should include longer follow-up time and more patients to better document the relationship between satisfaction and pre surgery ametropia or postoperative visual outcomes.

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