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Intraocular lens power calculation in high myopic eyes with previous radial keratotomy

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Authors
Han, Eui Seok; Lee, Jin Hak
Issue Date
2006-09-26
Publisher
Slack
Citation
J Refract Surg. 2006;22(7):713-716
Keywords
AdultCorneal TopographyFemaleHumans*Keratotomy, RadialLens Implantation, Intraocular*Lenses, IntraocularMyopia/*surgery*Optics and Photonics*PhacoemulsificationRetrospective Studies
Abstract
PURPOSE: To determine an accurate method of intraocular lens (IOL) power calculation in highly myopic eyes with previous radial keratotomy (RK). METHODS: Five eyes that had undergone RK with preoperative myopia >-14.0 diopters (D) were studied retrospectively. The keratometric values obtained with the clinical history method, contact lens over-refraction method, conventional keratometry, adjusted keratometry, and Orbscan II were compared to the true keratometric value calculated retrospectively with the SRK/T formula. RESULTS: The true keratometric value was closest to that from the contact lens over-refraction method in one eye and to the flatter keratometric value between simulated keratometry (Sim K) and the 3-mm diameter central zone mean keratometric value obtained with axial keratometric power map of Orbscan II in four eyes. CONCLUSIONS: The flatter keratometric value between Sim K and the 3-mm zone mean keratometric value from Orbscan II was closest to the true postoperative RK keratometric value of the central cornea.
ISSN
1081-597X (Print)
Language
English
URI
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16995555

http://hdl.handle.net/10371/68335
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College of Medicine/School of Medicine (의과대학/대학원)Ophthalmology (안과학전공)Journal Papers (저널논문_안과학전공)
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