Middle prechop: Fracturing the middle portion of the nucleus.

To decrease the use of ultrasound power, prechop techniques such as preslice and Akahoshi prechop have been developed. We describe a technique that fractures the nucleus through the center of the lens before chopping. After a continuous curvilinear capsulorhexis is created, an ophthalmic viscosurgical device is injected into the anterior chamber and 2 modified cystotomes are inserted into the lens with a back-and-forth movement; a small amount of pressure from opposite sides is applied to fracture the nucleus.

[Endothelial keratoplasty: Descemet stripping (DSEK) using TAN EndoGlide™ device: case series].

Purpose: To report the results of Descemet stripping endothelial keratoplasty (DSEK) using the TAN EndoGlideTM device to facilitate the insertion of the endothelial membrane.

Methods: Prospective clinical study that included nine patients presenting corneal edema secondary to endothelial dysfunction. Best corrected visual acuity, refraction, central corneal thickness, endothelial cell density and complications were analyzed after a six-month follow-up.

[Transplantation of allogenic limbal epithelial stem cells cultivated ex vivo on amniotic membrane: case report].

Case report of a patient who developed failure of an allogenic living related conjunctival limbal transplantation in the right eye after an episode of epidemic keratoconjunctivitis. After a few months, she underwent transplantation of allogenic limbal epithelial stem cells cultivated ex vivo on amniotic membrane (first case in Brazil). The patient evolved with total corneal epithelialization and improvement of the visual acuity.

[Corneal lamelar transplantation associated with stromal tattooing for leukoma treatment: case report].

Stromal cornea tattooing has been used for esthetic treatment of corneal scars as leukoma and iris coloboma. The coloring agent can be applied through stromal micropuncture or associated with lamellar keratectomy or keratoplasty. We report a case of stromal tattooing associated with lamellar keratectomy in a patient's eye that had extensive leukoma and irregular corneal surface.