Accuracy of scheimpflug holladay equivalent keratometry readings after corneal refractive surgery in the absence of clinical history

Omer Y. Bialer, Igor Kaiserman, Irit Bahar

Research output: Contribution to journalArticlepeer-review

Abstract

Background and Objective: To identify the most accurate combination of Pentacam's equivalent keratometry readings (EKR) and intraocular lens power formula when the clinical history is unavailable. Patients and Methods: A total of 18 patients underwent cataract surgery after refractive surgery. The Pentacam 4.5- and 3.0-mm EKR were combined with the SRK II, SRK/T, Hoffer-Q, and Holladay I and II formulas. Results: The smallest deviation from the predicted value was achieved by combining the 4.5 EKR with the Holladay II formula (mean arithmetic deviation, -0.2 ± 0.4 dpt). Conclusion: The 4.5-mm EKR + Holladay II formula can accurately calculate intraocular lens power in patients with previous refractive surgery.

Original languageEnglish
Pages (from-to)217-223
Number of pages7
JournalOphthalmic Research
Volume52
Issue number4
DOIs
StatePublished - 20 Apr 2014

Keywords

  • Cataract surgery
  • Corneal refractive surgery
  • Equivalent keratometry reading
  • Intraocular lens power calculation
  • Pentacam
  • Scheimpflug camera

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