Intraocular lens calculations in atypical eyes.
Cataract surgery is the most performed surgical procedure in the field of ophthalmology. The process of intraocular lens (IOL) calculations is a critical step to achieving successful outcomes. Many IOL formulae exist to guide surgeons through the difficult process of picking the most appropriate len...
| Publicado en: | Indian Journal of Ophthalmology Vol. 65; no. 12; pp. 1289 - 1294 |
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| Autores principales: | , |
| Formato: | research Journal Article |
| Publicado: |
Wolters Kluwer India Pvt Ltd
Dec2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=126622547&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 126622547 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 03014738 1BRZ jtl: Indian Journal of Ophthalmology issn: 03014738 maglogo: N pubinfo: dt: Dec2017 vid: 65 iid: 12 pid: 16919 pub: Wolters Kluwer India Pvt Ltd artinfo: ui: 126622547 126622547 NLM29208808 126622547 10.4103/ijo.IJO_834_17 NLM29208808 126622547 ppf: 1289 ppct: 5 formats: tig: atl: Intraocular lens calculations in atypical eyes. aug: au: Siddiqui, Aazim A. Devgan, Uday affil: Wilmer Eye Institute, Johns Hopkins Medical Institutions, Baltimore, Maryland sug: subj: Lenses, Intraocular Refractive Errors Physiopathology Biometrics Methods Optics Visual Acuity Vision Tests Human ab: Cataract surgery is the most performed surgical procedure in the field of ophthalmology. The process of intraocular lens (IOL) calculations is a critical step to achieving successful outcomes. Many IOL formulae exist to guide surgeons through the difficult process of picking the most appropriate lens to achieve a certain target refraction. However, these formulae reach within 0.50 diopters of the target refraction only 75% of the time, leaving 25% of the eyes with a significant refractive surprise. A literature review was performed to investigate all the relevant published material on the history, progress, and recent advancements of IOL calculations. Based on this review, the appropriate history, evolution, progress, limitations, and recent advancements are analyzed and explained. Although the modern IOL formulae and biometric devices perform well for average eyes, they are suboptimal for eyes with atypical biometric parameters and also those that are postrefractive and keratoconic. There has not been a single, perfect formula that can resolve the complexities of this process. Various methods of formula optimization and newer generation of IOL formulae and devices may hold the key to improving outcomes in both typical and atypical eyes. These solutions minimize refractive error by introducing new input parameters and complex mathematical techniques to better estimate postoperative lens position. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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