Moderate keratoconus with thick corneas.

Purpose: To describe two patients with moderate keratoconus and a corneal thickness exceeding 600 μm at the thinnest point.

Methods: Case report.

Results: In the first case, the steepest keratometric power was 51.

Nodular epithelial hyperplasia after photorefractive keratectomy followed by corneal collagen cross-linking.

This study describes a case of nodular epithelial hyperplasia and stromal alterations in a patient with keratoconus who was submitted to topography-guided photorefractive keratectomy (PRK) followed by corneal collagen cross-linking. Debridement of the epithelial nodule was performed. After a 2-year followup, a new topography-guided PRK was indicated.

Corneal ectasia secondary to LASIK after arcuate keratotomy.

Purpose: To present a case of corneal ectasia after LASIK in a patient with previous arcuate keratotomy.

Methods: Case report.

Results: The patient underwent arcuate keratotomy in both eyes in 1997 for with-the-rule regular hyperopic astigmatism and uneventful bilateral LASIK for residual astigmatism 5 years later.

Bilateral progressive idiopathic annular lipid keratopathy.

Purpose. To report two unusual cases of idiopathic lipid keratopathy with symmetrical bilateral annular corneal lipid infiltration and describe confocal microscopy findings. Methods.

Postoperative pain after corneal collagen cross-linking.

Purpose: To evaluate the postoperative pain after corneal collagen cross-linking (CXL).

Methods: : This prospective study included 178 consecutive eyes of 135 patients with progressive keratoconus who underwent CXL at Sadalla Amin Ghanem Eye Hospital, Joinville, Brazil. Pain was assessed postoperatively using the need for analgesia with 30 mg of codeine (Tylex) and by the patients' subjective evaluation on the Wong-Baker FACES Pain Rating Scale at the end of each day until postoperative day (PO) 5.

Corneal wavefront-guided photorefractive keratectomy with mitomycin-C for hyperopia after radial keratotomy: two-year follow-up.

Purpose: To assess corneal wavefront-guided photorefractive keratectomy (PRK) to correct hyperopia after radial keratotomy (RK).

Setting: Sadalla Amin Ghanem Eye Hospital, Joinville, Santa Catarina, Brazil.

Design: Case series.

Peripheral sterile corneal ring infiltrate after riboflavin-UVA collagen cross-linking in keratoconus.

Purpose: To present 7 cases of peripheral sterile corneal infiltrates that occurred after corneal cross-linking (CXL) for progressive keratectasia.

Methods: Seven patients who had their progressive keratoconus documented underwent corneal deepithelization and subsequently CXL, which was performed with the application of 0.1% riboflavin with 20% dextran, and exposure to UVA light (370 nm, 2.

Pachymetry-guided intrastromal air injection ("pachy-bubble") for deep anterior lamellar keratoplasty.

To evaluate an innovative technique for intrastromal air injection to achieve deep anterior lamellar keratoplasty (DALK) with bare Descemet membrane (DM). Thirty-four eyes with anterior corneal pathology, including 27 with keratoconus, underwent DALK. After 400 μm trephination with a suction trephine, ultrasound pachymetry was performed 0.

Customized topography-guided photorefractive keratectomy with the MEL-70 platform and mitomycin C to correct hyperopia after radial keratotomy.

Purpose: To evaluate topography-guided photorefractive keratectomy (PRK) for correcting hyperopia and astigmatism after radial keratotomy (RK).

Methods: Prospective study of 12 consecutive patients (19 eyes) who were treated with topography-guided PRK with 0.02% mitomycin C using an Asclepion-Meditec MEL-70 excimer laser with a 9.

Photorefractive keratectomy and butterfly laser epithelial keratomileusis: a prospective, contralateral study.

Purpose: To evaluate results of two surface excimer laser refractive surgery techniques--photorefractive keratectomy (PRK) and butterfly laser epithelial keratomileusis (butterfly LASEK).

Methods: A prospective, randomized, double-masked study of 51 patients (102 eyes) who underwent laser refractive surgery. One eye of each patient was randomized to be operated with PRK and the fellow eye with butterfly LASEK.

Iridectomy of the anterior iris stroma using the vitreocutter during phacoemulsification in patients with iridoschisis.

We present a technique to manage iridoschisis. This technique for anterior iridectomy of the affected iris fibers avoids intraoperative obstruction of the phaco tip and prevents postoperative complications such as corneal decompensation and glaucoma. Before the capsulorhexis is created, a vitreocutter is inserted in the anterior chamber and used to cut the iris strands at the site of the iridoschisis, making an anterior sectorial stromal iridectomy and preserving the iris pigment epithelium.