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Intraocular lens power calculation in high myopic eyes with previous radial keratotomy
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- Authors
- Issue Date
- 2006-09-26
- Publisher
- Slack
- Citation
- J Refract Surg. 2006;22(7):713-716
- Keywords
- Adult ; Corneal Topography ; Female ; Humans ; Lens Implantation, Intraocular ; Myopia/*surgery ; Retrospective Studies ; Keratotomy, Radial ; Lenses, Intraocular ; Optics and Photonics ; Phacoemulsification
- 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
https://hdl.handle.net/10371/68335
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