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Literature DB >> 3947615

On the calculation of power from curvature of the cornea.

Abstract

The theoretical basis for the calculation of corneal refractive power from anterior curvature is considered. It is shown that the power can be calculated with sufficient accuracy from one simple formula provided the refractive index of the 'cornea' is 1.3315. It is suggested that keratometer readings should be calibrated with this value in order to increase the accuracy in intraocular lens calculation.

Mesh：

Year: 1986 PMID： 3947615 PMCID： PMC1040942 DOI： 10.1136/bjo.70.2.152

Source DB: PubMed Journal: Br J Ophthalmol ISSN： 0007-1161 Impact factor: 4.638

4 in total

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Authors: R D Binkhorst
Journal: Int Ophthalmol Clin Date: 1979

2. Intraocular lens power calculation for planned ametropia: a clinical study.

Authors: J S Hillman
Journal: Br J Ophthalmol Date: 1983-04 Impact factor: 4.638

3. Preoperative evaluation of the cataractous patient.

Authors: K J Hoffer
Journal: Surv Ophthalmol Date: 1984 Jul-Aug Impact factor: 6.048

4. Lens power calculation--is it necessary?

Authors: P Percival
Journal: Trans Ophthalmol Soc U K Date: 1983

4 in total

43 in total

1. [Refractive changes in triple Descemet membrane endothelial keratoplasty].

Authors: C Girbardt; N Oertel; J Adamek-Dyk; P Wiedemann; A Nestler
Journal: Ophthalmologe Date: 2016-03 Impact factor: 1.059

2. Bio-orthogonally crosslinked hyaluronate-collagen hydrogel for suture-free corneal defect repair.

Authors: Fang Chen; Peter Le; Gabriella M Fernandes-Cunha; Sarah C Heilshorn; David Myung
Journal: Biomaterials Date: 2020-06-10 Impact factor: 12.479

3. Underestimation of intraocular pressure after photorefractive keratectomy: a biomechanical analysis.

Authors: Per Hallberg; Anders Eklund; Kenneth Santala; Timo Koskela; Olof Lindahl; Christina Lindén
Journal: Med Biol Eng Comput Date: 2006-07-26 Impact factor: 2.602

4. Intraocular lens power calculation after myopic and hyperopic laser vision correction using optical coherence tomography.

Authors: Maolong Tang; Li Wang; Douglas D Koch; Yan Li; David Huang
Journal: Saudi J Ophthalmol Date: 2012-01

5. Pre- and postoperative refraction after cataract extraction with implantation of standard power IOL.

Authors: T Olsen
Journal: Br J Ophthalmol Date: 1988-03 Impact factor: 4.638

6. Assessment of corneal properties based on statistical modeling of OCT speckle.

Authors: Danilo A Jesus; D Robert Iskander
Journal: Biomed Opt Express Date: 2016-12-08 Impact factor: 3.732

7. An intraocular lens power calculation formula based on optical coherence tomography: a pilot study.

Authors: Maolong Tang; Yan Li; David Huang
Journal: J Refract Surg Date: 2010-06-17 Impact factor: 3.573

8. Comparison of refractive outcomes using conventional keratometry or total keratometry for IOL power calculation in cataract surgery.

Authors: Sabong Srivannaboon; Chareenun Chirapapaisan
Journal: Graefes Arch Clin Exp Ophthalmol Date: 2019-09-05 Impact factor: 3.117

9. Optical coherence tomography accurately measures corneal power change from laser refractive surgery.

Authors: Ryan P McNabb; Sina Farsiu; Sandra S Stinnett; Joseph A Izatt; Anthony N Kuo
Journal: Ophthalmology Date: 2014-12-06 Impact factor: 12.079

10. Intraocular lens power calculation after corneal refractive surgery.

Authors: Vahid Feiz
Journal: Middle East Afr J Ophthalmol Date: 2010-01