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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

Purpose:

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.

Setting:

Iris Ophthalmology Clinic, Laval, Canada

Methods:

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.

Results:

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).

Conclusions:

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.

Financial Interest:

NONE

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