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Three years follow-up of hyperopic laser in situ keratomileusis using a 500hz excimer laser system

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Session Details

Session Title: Presented Poster Session: Femtolaser Refractive Applications

Session Date/Time: Saturday 05/09/2015 | 09:30-11:00

Paper Time: 09:30

Venue: Poster Village: Pod 2

First Author: : P.Sanz-Diez SPAIN

Co Author(s): :    A. Plaza-Puche   P. Yebana   S. Arba-Mosquera   J. Alio     

Abstract Details


To evaluate the visual, refractive, corneal aberrometric outcomes and regression of the achieved correction of hyperopia in the long-term with the sixth generation excimer laser.


Vissum corporation and Miguel Hernández University, Alicante, Spain


This retrospective consecutive observational case series study comprised 86 eyes of 44 patients who underwent Laser in situ keratomileusis (LASIK) to correct hyperopia with a postoperative follow-up of 3 years. LASIK procedures were performed using the 6th-generation Amaris excimer laser. Visual acuity, manifest refraction and corneal topography and aberrometry were evaluated in the follow-up.


76% of eyes had an uncorrected visual acuity of 20/20 or better. 70% of eyes had a spherical equivalent (SE) within ┬▒0.50D. There was regression of 0.47D between the 3-36 months postoperatively. Statistical significant differences were found in the SE between 3-36 months (p<0.01), but no statistical differences were observed between 12-36 months (p=0.08). A flattening of 0.16D was observed between 3-36 months after surgery in the mean simulated keratometry. After surgery, a significant increase of root-mean-square (RMS) spherical-like, coma-like and higher-order aberrations (p<0.01) were observed. 29% of eyes required retreatment.


Treatment of hyperopia using sixth-generation Amaris excimer laser provides very good results in terms of stability, efficacy, safety, predictability, and visual outcomes after 3 years. The refractive stability shows a significant regression in the first 12 months after surgery with more stable results from 12 months postoperatively.

Financial Interest:


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