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

Omer Y. Bialer; Igor Kaiserman; Irit Bahar

doi:10.1159/000363140

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

Omer Y. Bialer, Igor Kaiserman, Irit Bahar

Ophthalmology

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

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 language	English
Pages (from-to)	217-223
Number of pages	7
Journal	Ophthalmic Research
Volume	52
Issue number	4
DOIs	https://doi.org/10.1159/000363140
State	Published - 20 Apr 2014

Keywords

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

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10.1159/000363140

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

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.",

keywords = "Cataract surgery, Corneal refractive surgery, Equivalent keratometry reading, Intraocular lens power calculation, Pentacam, Scheimpflug camera",

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AU - Kaiserman, Igor

AU - Bahar, Irit

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AB - 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.

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KW - Equivalent keratometry reading

KW - Intraocular lens power calculation

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KW - Scheimpflug camera

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

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