Corneal power measurements with the Pentacam Scheimpflug camera after myopic excimer laser surgery

Giacomo Savini, Piero Barboni, Vincenzo Profazio, Maurizio Zanini, Kenneth J. Hoffer

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: To evaluate corneal power measurements by a rotating Scheimpflug camera (Pentacam, Oculus) in eyes that have had myopic excimer laser surgery. Setting: Private practice, Bologna, Italy. Methods: This prospective comparative interventional case series comprised 16 eyes of 16 patients who had myopic excimer laser surgery and for whom all perioperative data were available. Four corneal power measurements obtained with the Pentacam (simulated keratometry, true net power, equivalent K reading, and BESSt formula) were analyzed and compared with values derived using the clinical history method and 2 other formulas for calculating corneal power after refractive surgery (modified keratometric refractive index according to Savini et al. and separate consideration of the anterior and posterior corneal curvatures according to Speicher). Results: Analysis of variance showed a statistically significant difference between all methods (P

Original languageEnglish
Pages (from-to)809-813
Number of pages5
JournalJournal of Cataract and Refractive Surgery
Volume34
Issue number5
DOIs
Publication statusPublished - May 2008

ASJC Scopus subject areas

  • Ophthalmology

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