PURPOSE To describe the technique and to evaluate the safety of protected penetrating keratoplasty (PPK). METHODS A technique for penetrating keratoplasty is described. The postoperative endothelial cell counts of 17 eyes in which this operative technique was used were compared with those in 24 eyes in whom the standard operative technique for penetrating keratoplasty (PK) was used. The post-...

Keratoplasty is considered the most successful organ transplantation procedure in the world. Reisinger was the first to use the term keratoplasty (Reisinger, 1824), when he suggested using an animal’s eye to provide donor corneal tissue for corneal transplantation in a human. In 1906, the first successful penetrating keratoplasty was performed by Edward Konrad Zirm on a patient suffering from b...

AIMS To report the appearances of iridocorneal endothelial (ICE) syndrome from real time, white light confocal microscopy. METHODS Three consecutive patients, each with ICE syndrome, were examined prospectively. Corneal specular and confocal microscopic examinations were performed in all three patients. In the first patient, a penetrating keratoplasty was performed and the cornea was examined...

PURPOSE To describe the results of therapeutic penetrating keratoplasty in patients with impending perforation or perforated infectious keratitis. METHODS Fifty-nine charts of patients with infectious keratitis who were submitted to therapeutic penetrating keratoplasty were retrospectively reviewed at the Department of Ophthalmology of the Santa Casa of São Paulo from January 2000 to December...

PURPOSE The purpose of the study was to implement a new eye tracking mask which could be used to guide the laser beam in automated non-mechanical excimer laser assisted penetrating keratoplasty. MATERIALS AND METHODS A new trephination mask design with an elevated surface geometry has been proposed with a step formation between conical and flat interfaces. Two recipient masks of 7.5/8.0 mm ha...

AIMS To investigate the survival of donor-derived cells in a successfully grafted corneal button 10 years after penetrating keratoplasty for lattice dystrophy. METHODS In 1996, a 48-year-old male with lattice corneal dystrophy underwent penetrating keratoplasty 3 times in the right eye within a 3-month interval. Nine years and 7 months later, the patient underwent a fourth penetrating keratop...

To evaluate indications and outcomes of pediatric keratoplasty in a tertiary eye center, and identify factors that affect visual outcomes.We performed a retrospective review of penetrating keratoplasty in children aged 0 to 18 years between 1995 and 2011 in the Asociación para Evitar la Ceguera en México IAP, Hospital "Dr. Luis Sánchez Bulnes".A total of 574 penetrating keratoplasties were perf...

AIMS To evaluate visual function and vision specific health status in patients undergoing penetrating keratoplasty for keratoconus. METHODS A prospective longitudinal study measuring logMAR visual acuity, contrast sensitivity, disability glare, binocular visual field, stereoacuity, and subjective visual function (VF-14) was conducted on 18 patients with keratoconus undergoing penetrating kera...

purpose: to report the clinical, histopathologic, microbiologic and confocal microscopic features of candida keratitis after deep anterior lamellar keratoplasty (dalk). patients and findings: the first patient presented with asymptomatic white to cream-colored interface deposits two months after dalk. confocal scan disclosed clusters of hyper-reflective fine granular deposits in the interface w...