AIM To improve the deep lamellar keratoplasty technique. METHOD For the easy and reliable perfomance of deep lamellar keratoplasty (DLKP), detachment of Descemet's membrane through the corneal limber flap was improved. To expose Descemet's membrane, the parenchyma was detached by hydrodelamination through a sclerocorneal flap made in the corneal limbs. The parenchyma was removed after the pse...

Corneal transplantation has evolved rapidly over the past decade, as surgeons strive to refine selective tissue transplantation to treat diseases that affect specific layers of the cornea. The first successful penetrating corneal transplantation was performed by Eduard Zirm in 1905. In 1931, Ramon Castroviejo, MD, while a fellow at Mayo Clinic, refined the techniques for penetrating keratoplast...

Deep lamellar keratoplasty on air involves injecting air into the corneal stroma to expand it to several times its normal thickness. This method is designed to facilitate dissection of the deep stroma and reduce the risk of perforation of Descemet's membrane when carrying out deep lamellar keratoplasty. We have modified the technique by using prelathed freeze-dried donor tissue and report our r...

lar keratoplasty is not new. Mühlbauer was the first to describe a technique for anterior lamellar keratoplasty (ALK) in 1840.1 Penetrating keratoplasty (PKP) has long been the standard treatment for severe corneal pathology. Lamellar surgery has endured significant technical challenges since its inception. The posterior corneal surface is invisible through an operating microscope, due to the s...

Penetrating corneal transplant (PKP) surgery has been performed for centuries as the procedure of choice to restore vision in cases of advanced corneal disease. However, the last two decades have seen the introduction of lamellar corneal surgery (deep anterior lamellar keratoplasty, DALK; Descemet stripping-automated endothelial keratoplasty, DSAEK; and Descemet membrane endothelial keratoplast...

PURPOSE To describe a case of traumatic wound dehiscence after deep anterior lamellar keratoplasty. METHOD Observational case report. CASE REPORT A 31-year-old man who had undergone deep anterior lamellar keratoplasty using big-bubble technique for keratoconus 3 months earlier presented to emergency room after blunt trauma.On examination, visual acuity was counting fingers at 2 m. The corne...

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 ...

purpose: to compare the outcomes of deep anterior lamellar keratoplasty (dalk) using the big-bubble technique with that of penetrating keratoplasty (pk) in patients with keratoconus. methods: this double-blind clinical trial included patients with moderate to advanced keratoconus and poor spectacle-corrected visual acuity or contact lens intolerance. refractive errors, best corrected visual acu...

The use of femtosecond lasers has created an evolution in modern corneal and refractive surgery. With accuracy, safety, and repeatability, eye surgeons can utilize the femtosecond laser in almost all anterior refractive procedures; laser in situ keratomileusis (LASIK), small incision lenticule extraction (SMILE), penetrating keratoplasty (PKP), insertion of intracorneal ring segments, anterior ...