Background/aims—Post-keratoplasty astigmatism can be managed by selective suture removal in the steep axis. Corneal topography, keratometry, and refraction are used to determine the steep axis for suture removal. However, often there is a disagreement between the topographically determined steep axis and sutures to be removed and that determined by keratometry and refraction. The purpose of thi...

OBJECTIVE To conduct a systematic review of the efficacy/effectiveness, safety and cost of Descemet's stripping automated endothelial keratoplasty (DSAEK) technique in patients with corneal endothelial failure. METHODS Comprehensive literature search conducted in the main biomedical databases from January-May 2012. RESULTS Following a critical perusal of the total of 485 abstracts retrieved...

OBJECTIVE To determine the long-term effect on vision of penetrating keratoplasty performed for keratoconus. DESIGN Retrospective noncomparative case series. PARTICIPANTS All patients with keratoconus who received a corneal graft and who remained in our center for follow-up and visual rehabilitation during the study period. INTERVENTION Penetrating keratoplasty was performed in 93 eyes of...

PURPOSE To assess quantitatively corneal irregular astigmatism in association with best spectacle-corrected visual acuity. METHODS Refractive powers on a mire ring measured with computerized videokeratography were decomposed, using the Fourier series harmonic analysis. Extracting spherical and regular astigmatic components, the remaining irregular astigmatic component was quantified on rings ...

OBJECTIVE To compare outcomes between penetrating keratoplasty (PK) and deep anterior lamellar keratoplasty (DALK) in patients with keratoconus. DESIGN Retrospective cohort study. METHODS Data of 90 DALK and 49 procedures from conversion to PK, performed by a single surgeon (R.D.) from 2006 to 2011 were analysed. Outcomes on corrected distance visual acuity (BCVA), astigmatism, time to firs...

PURPOSE To evaluate and record the common complications that face surgeons when they perform their first few series of deep lamellar keratoplasty and measures to avoid these. SETTING Dar El Oyoun Hospital, Cairo, Egypt. METHODS Retrospective study of the first 40 eyes of 40 patients carried out by two corneal surgeons working in the same center. All patients were planned to undergo a deep a...

purpose: to report the results of photorefractive keratectomy (prk) with mitomycin-c (mmc) to correct myopia and astigmatism in patients who had previously undergone penetrating keratoplasty (pkp). methods: thirty-eight eyes of 32 patients underwent prk with mmc to correct astigmatism and myopia following pkp. result: mean spherical equivalent (se) was -5.2±4.7 d (diopter) and mean astigmatism ...

PURPOSE To assess the efficacy, predictability, stability, and safety of a two-step LASIK procedure using topography-guided ablation to correct astigmatism after penetrating keratoplasty. METHODS Fifteen eyes of 15 patients underwent a two-step LASIK procedure at the Maggiore Hospital of Bologna, Italy. In the first step, a flap was created using the Hansatome microkeratome. In the second ste...

purpose: to report two patients with keratoconus who underwent regrafting to correct anisometropia and high astigmatism after penetrating keratoplasty. patients and findings: the first case is a 34-year-old man with keratoconus who had undergone penetrating keratoplasty. the sutures were removed 6 months postoperatively that led to high hyperopia. regraft was performed considering vitreous leng...