Comparison of custom ablation and conventional laser in situ keratomileusis for myopia and myopic astigmatism using the Alcon excimer laser.

Purpose: To compare the refractive outcomes, higher order aberrations, and contrast sensitivity after laser in situ keratomileusis (LASIK) using wavefront ablation and conventional ablation.

Setting: Private practice in Córdoba, Spain and a free-standing outpatient surgery center.

Methods: This was a prospective, nonrandomized, observational case series comparing outcomes of 239 eyes that underwent LASIK for myopia and myopic astigmatism with either wavefront or conventional ablation using the LADARVISION excimer laser.

Description, etiology, and prevention of an outbreak of diffuse lamellar keratitis after LASIK.

Purpose: To describe an outbreak of diffuse lamellar keratitis (DLK) and provide a hypothesis about the etiology.

Methods: A retrospective analysis was carried out on 328 eyes of 220 patients who underwent LASIK over 9 months. The occurrence of DLK using two different methods of cleaning and sterilizing surgical instruments and an autoclave reservoir were analyzed.

Deep anterior lamellar keratoplasty in post-laser in situ keratomileusis keratectasia.

We describe a technique using deep anterior lamellar keratoplasty (DALK) in 5 eyes that developed keratectasia after LASIK. The technique is based on surgical manipulation that allows visualization of the lamellar dissection depth using a posterior approach to reach the predescemetic space. The mirror effect, indentation effect, and folding effect were used to determine proximity to Descemet's membrane.