Modified deep anterior lamellar keratoplasty in the management of small and large epithelialized descemetoceles.

Purpose: Descemetocele is a severe complication of corneal ulceration associated with a high risk of perforation. We describe a modified air-assisted deep anterior lamellar keratoplasty (DALK) technique for the surgical management of small and large epithelialized descemetoceles.

Methods: Two representative cases are presented, one with a small (2 mm) and one with a large (4 mm) descemetocele.

[Femtosecond laser-assisted keratoplasties].

Femtosecond laser technology in ophthalmology is not only used for refractive surgery (LASIK flaps), but also now for lamellar and penetrating keratoplasties. This is not surprising when one knows that femtosecond lasers can cut corneal tissue in all directions with micrometric accuracy. Lamellar dissection of the cornea is very facilitated with femtosecond laser because it is quicker and more reproducible.

Late corneal perforation after photorefractive keratectomy associated with topical diclofenac: involvement of matrix metalloproteinases.

Objective: To report a case of a 50-year-old man who was initially seen with a corneal perforation in his right eye 2 months after a photorefractive keratectomy (PRK) procedure and to discuss the roles of topical diclofenac and matrix metalloproteinases (MMPs).

Design: Case report with tissue analysis.

Main Outcome Measures: Ocular examination, diagnostic workup, surgical treatment, and histologic, immunofluorescent, zymography, and real time-polymerase chain reaction studies on corneal button.

Reliability of pachymetric measurements using orbscan after excimer refractive surgery.

Purpose: To assess the accuracy of pachymetric measurements using Orbscan (Bausch & Lomb, Rochester, NY) after laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK).

Design: Prospective instrument validation study.

Participants: Seventy-nine nonoperated normal eyes, 84 eyes after LASIK, and 50 eyes after PRK.