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Efficacy of advanced surface ablation vision correction for adult strabismic and refractive amblyopes

Session Details

Session Title: Refractive

Session Date/Time: Sunday 17/02/2013 | 08:30-11:00

Paper Time: 09:35

Venue: Hall 3

First Author: : E.Chynn USA

Co Author(s): :    M. Plana   E. Chynn           

Abstract Details


To determine whether adult amblyopes (strabismic or refractive) can be safely and effectively treated with advanced surface ablation, and to determine if BCVA, peripheral vision, stereo acuity, and/or subjective functionality can be improved.


Park Avenue LASEK, a refractive surgery private practice in New York, USA.


A retrospective review was conducted of adult amblyopes at a laser vision correction center who received advanced surface ablation. 13 eyes were identified with the following types of amblyopia: strabismic (15%), anisometropic refractive (38%), or isometropic refractive (46%). Myopic eyes (54%) ranged from spherical equivalence (SE) of -7.50 to -20.75 D (mean –13.70 D), and hyperopic eyes (46%) ranged from SE of +1.00 to +7.50 D (mean +4.54 D). All eyes underwent LASEK or Epi-LASEK with a VISX S4IR excimer laser. Mitomycin C (MMC) 0.01% was given intraoperatively, topical and oral steroids and Vitamin C were given postop, and UV protection mandated to prevent scarring.


At 1 month postop, UCVA was on average 9.87 lines better than preop UCVA and BCVA was 2.23 lines better than preop BCVA. At the 6 month postop, UCVA was on average 13.67 lines better than preop UCVA, and BCVA was 1.16 lines better than preop BCVA. 14% of myopes and 50% of hyperopes had postop haze; none was clinically significant, as defined by improvement, not loss, of BCVA in all patients. 100% of patients reported functional gain: improved driving (54%), peripheral vision (46%), and sports ability (62%). 100% would undergo the operation again if given the choice.


Adult patients with refractive and/or strabismic amblyopia may be safely and effectively treated with advanced surface ablation, as evidenced by minimal complications and improvements in UCVA, BCVA and visual function in 100% of eyes. Use of adjunctive therapy to prevent scarring is necessary when treating extreme prescriptions in this category of eyes.

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