Purpose: To assess and contrast the visual and refractive results of Descemetic deep anterior lamellar keratoplasty (DALK) and penetrating keratoplasty (PK) in the treatment of advanced keratoconus.
Design: Retrospective, comparative, interventional study.
Methods: This study enrolled eyes affected by keratoconus with preoperative mean keratometry ≥60 diopters (D) that were treated with either Descemetic DALK (30 eyes) or PK (29 eyes) by using always the same corneal diameters (8.
Purpose: To evaluate visual and refractive outcomes of customized photorefractive keratectomy (PRK) in subjects with persistent subepithelial corneal opacities secondary to adenoviral epidemic keratoconjunctivitis (EKC).
Patients And Methods: Prospective study, which recruited patients with persistent and visually-significant post-EKC corneal opacities unresponsive to prolonged topical therapy (6 months or more). Outcome measures: uncorrected and best-corrected distance visual acuity, subjective refractive astigmatism, keratometric astigmatism, spherical equivalent, minimum corneal thickness, and corneal morphological irregularity index.
Purpose: To use anterior segment optical coherence tomography (AS-OCT) to compare corneal stromal demarcation line depth after 4 treatment protocols of corneal crosslinking (CXL).
Setting: Eye Clinic, Sapienza University of Rome, Terracina (Latina), Italy.
Design: Prospective case series.
Purpose: To compare an ultrasound pachymeter with an optical low coherence reflectometry (OLCR) pachymeter for measuring pre- and postoperative central corneal thickness of patients undergoing photorefractive keratectomy (PRK).
Methods: In a prospective, noncomparative, interventional study, 48 myopic eyes (mean manifest refractive spherical equivalent: -4.93 +/- 2.