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Photorefractive keratectomy concurrent with accelerated cross-linking: safety and efficacy outcomes at 6 months

Poster Details

First Author: J.Reyes SPAIN

Co Author(s):    F. Duch   M. Marti   R. Escude   M. Crapanzano           

Abstract Details

Purpose:

To assess the safety and efficacy of Photorefractive keratectomy (PRK) applied concurrently with Accelerated Crosslinking (CXL-a) in a group of miopic patients.

Setting:

Refractive Surgery Department,Institut CatalĂ  de Retina(ICR), Barcelona, Spain

Methods:

Interventional case series at Refractive Surgery Department of Institut CatalĂ  de Retina, Barcelona. Between June and December of 2014, a group of 10 patiens had PRK with concurrent CXL-a for treatment of myopia. The follow-up is 6 months by now. The primary inclusion criteria were bilateral myopia or myopia with astigmatism, age older than 18 years, a BCVA of 20/20, and stable refraction. Corneal topography with no criteria of subtle keratoconus was also required. The attempted correction ranged from -1.25 to -5.75 diopters (D). Patients were examined preoperatively, 1, 3, 6, months postoperatively.

Results:

A total of 19 eyes of 10 patients were enrolled, with a mean age of 30.36 years. The mean preoperative spherical equivalent was -3,74D. The mean preoperative UCVA was 0.07 and the BCVA 1.0. The preoperative BFSp/BFSa (Efkarpides) ratio was 1.21 (normal) and the mean differential display Belin Ambrosio 0.67. At 1-month follow-up the visual acuity values were 0.83 and 0.98 respectively. At the 3-month follow-up, values of UCVA and BCVA improved to 0.96 to 1.04. No eye lost 1 or more lines of CDVA at the final visit. Data collection corresponding to the 6-month follow-up is being conducte.

Conclusions:

While CXL was designed for the treatment of keratoconus and ectasia, the use of PRK with concurrent CXL-a could help reduced the rate of regression of the treated ametropias. A new method to stabilize the patient's refraction and the cornea after refractive surgery would be very useful.

Financial Disclosure:

NONE

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