Objective: To evaluate the corneal topographical changes after Femtosecond-LASIK surgery in eyes with mixed astigmatism. Methods: We present the analysis of the corneal Scheimpflug topographies of a patient treated with Femtosecond-LASIK technique for bilateral mixed astigmatism. Results: Three-dimensional reconstruction maps and differential anterior curvature maps were used to demonstrate the...

DSAEK (Descemet stripping automated endothelial keratoplasty) is one of the options for corneal endothelium disease, which in some patients can result in a residual hyperopia after the procedure. Usually 6 to 12 months after corneal transplantation refraction is already stable. This report describes a therapeutic option used in a 54 years old patient with Fuchs’ endothelial dystrophy submitted ...

We report on a 72 year-old pseudophakic patient who had been implanted with a monofocal intraocular lens, and who underwent a unilateral Supracor laser-assisted in-situ keratomileusis (LASIK) procedure to correct presbyopia and hyperopia. Uncorrected near visual acuity was improved, but the patient complained of glare, halo, reduced distance vision, and poor night driving vision due to treatmen...

PURPOSE To evaluate the variability of subjective corneal topography map classification between different experienced examiners and the impact of changing from an absolute to a normative scale on the classifications. METHODS Preoperative axial curvature maps using Scheimpflug imaging obtained with the Pentacam HR (Oculus Optikgeräte, Wetzlar, Germany) and clinical parameters were sent to 11 c...

Corneal collagen cross-linking has become the preferred modality of treatment for corneal ectasia since its inception in late 1990s. Numerous studies have demonstrated the safety and efficacy of the conventional protocol. Our understanding of the cross-linking process is ever evolving, with its wide implications in the form of accelerated and pulsed protocols. Newer advancements in technology i...

OBJECTIVE To report on 4-year follow-up of corneal higher-order aberrations and daily visual functions of myopic patients after laser in situ keratomileusis (LASIK). METHODS One hundred thirty four eyes of 67 patients who underwent LASIK guided by aspherical ablation were included in this study. The vision, corneal spherical aberration (SphA) and Coma were recorded before LASIK and at 6 month...

AIM To determine the difference in the incidence of bilateral diffuse lamellar keratitis (DLK) in patients undergoing simultaneous versus sequential laser in situ keratomileusis (LASIK) as an indication of intrinsic risk for inflammation. METHODS A retrospective non-comparative case series of 1632 eyes that had undergone bilateral, simultaneous or sequential LASIK between April 1998 and Febru...

Case reports of six patients having pre-existing corneal irregularities were prepared. They included patients with keratoconus, hexagonal keratotomy, corneal transplant, LASIK, ABMD and previous penetrating injury. Pre and postoperative refraction and topography were analyzed. All patients received biaspheric IOLs and some received corneal or limbal relaxing incisions at the time of the surgica...

PURPOSE To compare the visual acuity outcomes between 2 target locations for corneal inlay implantation with concurrent laser in situ keratomileusis (LASIK) to compensate for presbyopia. SETTING Shinagawa LASIK Center, Tokyo, Japan. DESIGN Retrospective cohort study. METHODS Bilateral LASIK was performed simultaneously with inlay implantation in the nondominant eye. The preoperative and 6...

Near fully dense tungsten coatings onto molybdenum substrates have been demonstrated using the Supersonic Laser Deposition (SLD) process. This is a characteristic that is not readily achievable with refractory materials. The tensile strength of the tungsten deposited coatings, 724MPa, is comparable to that of wrought tungsten with no evidence of melting or substrate grain growth. The results ha...