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.

[Precision and reliability of Orbscan and ultrasonic pachymetry].

Purpose: To compare the accuracy and reproducibility of the orbscan pachymetry and ultrasonic pachymetry in the normal eye and in the penetrating keratoplasty eye.

Methods: Pachymetric measurements were assessed in 50 eyes of 25 normal patients and 50 eyes of 48 patients who had undergone penetrating keratoplasty using both Orbscan II and ultrasonic pachymetry (Tomey SP-2000). For each eye, 2 successive measures were recorded with both instruments.

[Correlation between corneal topography and subjective refraction in idiopathic and surgery-induced astigmatism].

Purpose: To study the correlation between subjective refraction and corneal topography. To compare the topographic analysis of surgically induced astigmatism (cataract and penetrating keratoplasty) with that of idiopathic astigmatism.

Methods: Subjective astigmatism, subjective spherical equivalent, best spectacle-corrected visual acuity (LogMAR units), and videokeratoscopy using the EyeSys 2000((R)) device (axial, tangential, and refractive power) were recorded in 100 eyes with idiopathic astigmatism, 100 eyes after cataract surgery, and 100 eyes after penetrating keratoplasty.

Automated keratoconus detection using the EyeSys videokeratoscope.

Purpose: To evaluate the effectiveness of indices derived from the EyeSys System 2000 in detecting keratoconic corneas.

Setting: Department of Ophthalmology, Hôpital Saint Antoine, Paris VI University, Paris, France.

Methods: Topographies of 208 corneas were evaluated.

[Comparison of EyeSys videokeratoscope algorithms in the evaluation of idiopathic and postoperative astigmatism].

Purpose: To compare the accuracy and reproducibility of the Eye Sys videokeratoscope algorithms for analyzing idiopathic and surgery-induced astigmatism analysis.

Methods: Refractive astigmatism, videokeratoscopy (axial, tangential and refractive power), autorefractometry, autokeratometry, and keratometry were recorded in 20 patients with idiopathic astigmatism, 40 patients who had undergone cataract surgery and 40 patients who had undergone penetrating keratoplasty. For each eye, 2 successive videokeratoscopy were recorded.

Prediction of spectacle-corrected visual acuity using videokeratography.

Purpose: Our aim was to improve prediction of spectacle-corrected visual acuity (SCVA) using indices derived from the EyeSys System 2000 data (version 3.1).

Methods: We studied corneal topography in 182 eyes from 8 groups of patients.

Surgical correction of postkeratoplasty astigmatism with the Hanna arcitome.

Purpose: To report the results of arcuate keratotomy performed with the Hanna arcitome in patients with postkeratoplasty astigmatism.

Setting: Department of Ophthalmology, Saint-Antoine Hospital, Paris VI University, Paris, France.

Methods: This retrospective study comprised 22 eyes (22 patients) with postkeratoplasty astigmatism.

[Phacoemulsification for visual refraction on the clear lens. Apropos of 33 severely myopic eyes].

Purpose: To evaluate visual benefit, predictability and complications after clear lens phakoemulsification and posterior chamber implantation in highly myopic eyes.

Methods: Thirty-three highly myopic eyes were reviewed at a mean postoperative follow-up of 27 months. The mean age of the 19 patients was 31.

[Surgical treatment of astigmatism caused by penetrating keratoplasty using the Hanna arcuate keratome].

Purpose: High postkeratoplasty astigmatism is a common postoperative complication which can limit the final functional result. Arcuate incisions are a possible surgical treatment. They can be performed with the arcuate keratome which provides regular incisions.