Effect of topographic cone location on outcomes of corneal collagen cross-linking for keratoconus and corneal ectasia.

Purpose: To assess the effect of preoperative topographic cone location on 1-year outcomes of corneal collagen cross-linking (CXL).

Methods: In this prospective, randomized, controlled clinical trial, 99 eyes (66 keratoconus, 33 ectasia) from 76 patients underwent CXL. Cone location was defined by the coordinates of preoperative maximum keratometry (maximum K) using the anterior sagittal curvature topography map (Pentacam, Oculus Optikgeräte GmbH).

Higher-order aberrations after corneal collagen crosslinking for keratoconus and corneal ectasia.

Purpose: To determine changes in higher-order aberrations (HOAs) after corneal collagen crosslinking (CXL).

Setting: Cornea and refractive surgery practice.

Design: Prospective randomized controlled clinical trial.

In vivo biomechanical changes after corneal collagen cross-linking for keratoconus and corneal ectasia: 1-year analysis of a randomized, controlled, clinical trial.

Purpose: To investigate the in vivo, corneal, biomechanical changes after corneal collagen cross-linking (CXL) using the Ocular Response Analyzer (ORA) in patients with keratoconus and post-laser in situ keratomileusis (LASIK) ectasia.

Methods: Single-center, prospective, randomized, controlled, clinical trial. After CXL (69 eyes, 46 keratoconus and 23 post-LASIK), corneal hysteresis (CH) and corneal resistance factor (CRF) were measured using the ORA and analyzed in a treatment, sham control, and fellow eye control group at baseline and 1, 3, 6, and 12 months.

Corneal topography indices after corneal collagen crosslinking for keratoconus and corneal ectasia: one-year results.

Purpose: To evaluate changes in corneal topography indices after corneal collagen crosslinking (CXL) in patients with keratoconus and corneal ectasia and analyze associations of these changes with visual acuity.

Setting: Cornea and refractive surgery subspecialty practice.

Design: Prospective randomized controlled clinical trial.

Corneal thickness changes after corneal collagen crosslinking for keratoconus and corneal ectasia: one-year results.

Purpose: To determine the changes in corneal thickness over time after corneal collagen crosslinking (CXL) for keratoconus and corneal ectasia.

Setting: Cornea and refractive surgery subspecialty practice.

Design: Prospective randomized controlled clinical trial.

Corneal collagen crosslinking for keratoconus and corneal ectasia: One-year results.

Purpose: To evaluate 1-year outcomes of corneal collagen crosslinking (CXL) for treatment of keratoconus and corneal ectasia.

Setting: Cornea and refractive surgery subspecialty practice.

Design: Prospective randomized controlled clinical trial.

Natural history of corneal haze after collagen crosslinking for keratoconus and corneal ectasia: Scheimpflug and biomicroscopic analysis.

Purpose: To determine the natural history of collagen crosslinking (CXL)-associated corneal haze measured by Scheimpflug imagery and slitlamp biomicroscopy in patients with keratoconus or ectasia after laser in situ keratomileusis.

Setting: Cornea and refractive surgery subpecialty practice, United States.

Design: Prospective randomized controlled clinical trial.

Conductive keratoplasty to treat complications of LASIK and photorefractive keratectomy.

Purpose: To assess the outcomes of conductive keratoplasty (CK) for patients with complications related to LASIK or photorefractive keratectomy (PRK).

Design: Retrospective, noncomparative, interventional case series.

Participants: Sixteen eyes of 15 patients were treated using CK after complications of initial LASIK or PRK surgeries.

Incidence and associations of retreatment after LASIK.

Purpose: To determine the incidence and risk factors for laser in situ keratomileusis (LASIK) retreatment and to present a novel retreatment technique.

Design: Retrospective noncomparative consecutive case series.

Participants: Two thousand four hundred eighty-five eyes (1306 patients) underwent LASIK surgery for myopia, hyperopia, or astigmatism using either the Summit Apex Plus or the Alcon LADARVision excimer laser systems.