purpose: to determine the long-term visual outcomes and complications of penetrating keratoplasty (pk) performed for keratoconus. methods: hospital records of patients with keratoconus who underwent pk at the ophthalmology center of shaheed sadoughi, yazd, iran, during 1992-2003 were reviewed. we studied records of 84 pk procedures in 72 keratoconus patients. data including best corrected visua...

purpose : to present conductive keratoplasty (ck) as a new procedure to correct residual hyperopia and astigmatism after phacoemulsification surgery and to evaluate its predictability, safety and stability methods : fifteen eyes of 13 patients with preoperative hyperopia +0.75 to +3.00 d and or astigmatism -0.75 to -3.00 d were enrolled into the study and underwent ck treatment. at the 1st and ...

purpose: to evaluate the visual and refractive outcomes of automated lamellar therapeutic keratoplasty (altk) in patients with keratoconus. methods: in this prospective noncomparative clinical trial, altk was performed in 14 eyes of 14 patients with moderate to severe keratoconus. all patients were spectacle and contact lens intolerant.  uncorrected visual acuity (ucva), best corrected visual a...

purpose: evaluate the effect of relaxing incision and adjustment sutures to correct astigmatism after deep anterior lamellar keratoplasty (dalk) in patients with keratoconus. materials and methods: this interventional case series included keratoconic eyes undergoing graft refractive surgery (grs) for intolerable post-dalk astigmatism. the technique of graft refractive surgery for the 5 initial ...

NOVEMBER/DECEMBER 2010 CATARACT & REFRACTIVE SURGERY TODAY EUROPE 23 F ull-thickness penetrating keratoplasty (PKP) has been the preferred corneal transplantation technique since the procedure was first described in 1905 by Eduard Zirm.1 Today, PKP generally results in clear corneal grafts, with a graft survival rate of up to 72% at 5 years.2 However, the procedure is frequently complicated by ...

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...

PURPOSE The objective of this study is to describe the authors' results with intrastromal corneal ring segments (Intacs) and a new variation of lamellar keratoplasty, termed intralamellar keratoplasty (ILK), for the treatment of keratoconus (KCN) and post-laser-assisted in situ keratomileusis (LASIK) ectasia. METHODS A retrospective review of contact lens-intolerant KCN and post-LASIK ectasia...

Residual refractive error often complicates penetrating keratoplasty (PKP) and can be treated surgically in patients who are contact lens intolerant. Both photorefractive keratectomy and laser in situ keratomileusis (LASIK) have been used to reduce postoperative myopia and astigmatism following PKP. Reported complications of LASIK following PKP include irregular astigmatism, photoablation decen...

PURPOSE To assess the clinical outcomes of femtosecond laser-assisted keratoplasty (FLAK) using the VisuMax femtosecond laser system, and to compare them with those of conventional penetrating keratoplasty (PK). METHODS We retrospectively examined 20 eyes of 20 consecutive patients undergoing FLAK and 20 eyes of 20 age- and diagnosis-matched patients undergoing conventional PK. We quantitativ...