Background/aims: To assess the technical feasibility and outcomes of femtosecond laser-assisted Bowman layer transplantation (FLABOLT) in stabilizing progressive, advanced keratoconus, which is ineligible for corneal crosslinking.
Methods: This single-center retrospective study included 50 eyes of 49 patients with progressive advanced keratoconus, ineligible for corneal crosslinking, that underwent FLABOLT with both the donor graft and recipient mid-stromal pocket using a femtosecond laser.
Results: The mean follow-up was 13.
Purpose: The purpose of this study was to evaluate the impact of the coronavirus disease 2019 pandemic on corneal transplantation (CT) in Brazil.
Methods: Data from patients who underwent CT at the Hospital Oftalmológico de Sorocaba (HOS), Brazil, were analyzed. National and state numbers of keratoplasties, patients added to the CT waiting list, and total patients on the waiting list were also obtained.
Purpose: Pre-Descemet's endothelial keratoplasty (PDEK) donor tissue preparation involves the intrastromal injection of air to create a type 1 big bubble (BB) and avoidance of the creation of a type 2 BB. The purpose of this study was to design and test a technique to consistently creates a type 1 BB without risk of creating a type 2 BB.
Methods: A prospective matched study with 64 human donor sclerocorneal discs, which were not suitable for corneal transplantation, was conducted.
Purpose: To determine the effect of upper blepharoplasty on corneal topography and intraocular lens power calculation using Galilei and IOLMaster.
Methods: Thirty patients submitted to upper blepharoplasty from May 2014 to March 2017 at the Hospital Oftalmológico de Sorocaba (São Paulo, Brazil) were included in this observational case series. All patients underwent imaging sessions with Galilei and IOLMaster preoperatively (baseline) and at 1 and 6 months postoperatively.
Purpose: To describe the outcomes of Descemet membrane endothelial keratoplasty (DMEK) performed in amblyopic aged (younger than 8 years) children.
Methods: This is a single-center retrospective study, including 11 eyes (7 congenital hereditary endothelial dystrophy and 4 congenital glaucoma) of 6 children in amblyopic age undergoing DMEK by a single surgeon (N.C.
Purpose: To describe the outcomes of Descemet membrane endothelial keratoplasty (DMEK) performed by cornea fellows during their initial learning curve.
Methods: This prospective study included the first consecutive series of 53 DMEK surgeries performed by 14 corneal fellows at Sorocaba's Ophthalmological Hospital. Best spectacle-corrected visual acuity, endothelial cell density (ECD), and complications were evaluated.
Purpose: This report describes the use of Descemet membrane endothelial keratoplasty for the management of endothelial decompensation after multifocal intraocular lens implantation.
Methods: In this retrospective study, we reviewed and assessed the surgical outcomes of 9 patients (9 eyes) who underwent Descemet membrane endothelial keratoplasty after multifocal intraocular lens implantation.
Results: Corneal edema occurred due to Fuchs endothelial corneal dystrophy (n=3), pseudophakic bullous keratopathy (n=3), Descemet's membrane detachment (n=2), and toxic anterior segment syndrome (n=1).
Purpose: Donated corneas are classified as tectonic if there are defects within any layers of the cornea which would prevent a satisfactory visual outcome after transplantation. This study aimed to evaluate whether some tectonic corneas have sufficient endothelial characteristics to allow their use in posterior lamellar keratoplasty, and explored their reclassification for use in this sight-improving procedure.
Methods: A retrospective review of all corneal tissues preserved by the Sorocaba Eye Bank from January to April of 2014 was performed.
Purpose: We report a simplified Descemet's membrane endothelial keratoplasty (DMEK) technique that involves safe and effective preparation and introduction, correct orientation, and easy unfolding of the donor graft inside the recipient anterior chamber.
Methods: In this retrospective study, we assessed the surgical outcomes of 26 eyes of 23 consecutive patients (mean age, 61.2 ± 11.
Objectives:: To describe the indications for and visual outcomes of intrastromal corneal ring segment implantation.
Methods:: A large retrospective case-series chart-review study was conducted using Sorocaba Ophthalmological Hospital medical records. This study included 1222 eyes (1196 patients) that were surgically treated between November 2009 and December 2012.
This case report describes the production of an ultrathin endothelial donor corneal lamella using a femtosecond laser with low energy and a high frequency. In addition, we report its use in vivo in an eye with pseudophakic bullous keratopathy. The outcomes were observed 3 months after surgery in terms of the change in endothelial donor lamella and full cornea thickness (including pachymetric mapping), visual acuity, and endothelial cell count.
View Article and Find Full Text PDFPurpose: To assess the safety and efficacy of photorefractive keratectomy with mitomycin C (PRK-MMC) to correct refractive errors after corneal transplantation.
Methods: This was a prospective and noncomparative study of 36 eyes that underwent PRK-MMC after penetrating (n = 34) or lamellar (n = 2) keratoplasty. After mechanical epithelial removal and photoablation, a sponge with mitomycin C 0.
Purpose: To compare the visual and clinical outcomes of Wavefront-guided laser in situ keratomileusis (Lasik) with Alcon CustomCornea and Zyoptix systems.
Methods: A prospective, randomized, masked and bilateral study was conducted. Fifty patients with preoperative spherical equivalent ranging from -1.
Purpose: To evaluate the efficacy, complications and confocal microscopy corneal features of deep anterior lamellar keratoplasty using the air dissection technique in keratoconus.
Methods: Seventeen eyes with advanced keratoconus were submitted to this technique. Postoperative visual acuity and complication rate were analyzed.
Purpose: To perform the first Brazilian refractive surgery survey.
Methods: Between August 2001 and February 2002, a questionnaire was mailed to 7890 Brazilian ophthalmologists. The questionnaire presented questions about demographic aspects, technology, instruments, market, trends, practice patterns and cost of refractive surgery.
Purpose: To report confocal microscopy use in the clinical diagnosis of epithelial ingrowth after penetrating keratoplasty (PKP).
Methods: A 36-year-old female patient with keratoconus developed a well-delimited posterior hazy membrane covering the inferior two thirds of the cornea 3 months after an uneventful PKP. A posterior corneal line was present resembling an endothelial graft rejection line, but with no keratic precipitates or corneal edema.