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Influences on enhancement rates in laser vision correction

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Session Details

Session Title: LASIK Outcomes I

Session Date/Time: Tuesday 16/09/2014 | 14:00-16:00

Paper Time: 14:46

Venue: Boulevard B

First Author: : R.Corkin IRELAND

Co Author(s): :    K. Stonecipher              

Abstract Details


The design of the study was to look consecutively at what are the prime influences on enhancements in laser vision correction. Influences in outcomes were evaluated in a series of patients and the findings will be reported.


A series of 4079 cases were reviewed consecutively from a single surgeon series.


Single surgeon surgeries were performed using a femtosecond laser for flap creation and laser vision correction was performed with the Alcon Wavelight Eye Q 400 Hz laser system.


The series ranged in primary treatments of spherical equivalents (SE) from 0 to -12 diopters with up to 4 diopters of cylinder. The preoperative average SE was -4.59+/-2.79 D and the cylinder average was -0.9+/-0.9D. UCVA prior to the enhancement was 0.63+/-.23 (20/32) and postenhancement was 0.99+/-0.2 (20/20). The overall enhancement rate for the group was 0.71%. The top four influences on enhancements were presence of an Opaque Bubble Layer (31%); dry eye disease (27.6%); history of ocular allergy (24.1%); and poor fixation (17.1%). Additional influences will be presented.


The presence of OBL was the number one influence on enhancements. Dry eye disease was the second most common influence. Ocular allergy in patients and potential influences will be discussed. Laser platforms, outcomes analysis , nommogram adjustments, and other influences will be discussed to help produce enhancement rates below 1%.

Financial Interest:

One or more of the authors... receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented, One or more of the authors... research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented

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