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Accuracy of Intraocular Lens Power Calculation Based on Distance from Haptic to Principal Object Plane. [PDF]
J Cataract Refract SurgEom Y +10 more
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Evaluation of Reliability of Formulas for Intraocular Lens Power Calculation After Hyperopic Refractive Surgery. [PDF]
J Clin MedBoccia R +7 more
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Intraocular Lens Power Calculation
Optometry and Vision Science, 2014 ABSTRACT Purpose To highlight different methods in calculating intraocular lens (IOL) power in the case of undetectable keratometric (K) readings. Case Report A 54‐year‐old woman was referred to us for cataract ...
ROSA, Nicola +3 more
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Intraocular Lens Power Formulas
Ophthalmology, 1981We have developed a FORTRAN digital computer program to evaluate intraocular lens power for any thin lens and combination of corneal curvature and axial length. Partial derivatives of the power with respect to cornea power, axial length, and lens position allow estimation of error in power of the lens. These derivatives are computed along with power of
Karl J Fritz
exaly +5 more sources
Intraocular Lens Power Calculation in Children
Survey of Ophthalmology, 2007With improving surgical technique and equipment, the acceptable age for placing an intraocular lens in infants and children is becoming younger. The tools for predicting intraocular lens power have not necessarily kept up, as current theoretical and regression intraocular lens power prediction formulas are largely based on adult eyes at axial lengths ...
Monte A Del Monte, Steven M Archer
exaly +3 more sources
The Fudged Formula for Intraocular Lens Power Calculations
Journal - American Intra-Ocular Implant Society, 1982The formula presented is a modification of Colenbrander's formula. The formula yields a 0.70 diopter stronger power emmetropizing lens for a 23.0 mm eye. It also fudges the axial length by subtracting 0.1 mm for each 1.0 mm longer than 23.0 mm, and by adding 0.1 mm for each 1.0 mm shorter than 23.0 mm.
H J Shammas
exaly +3 more sources
American Journal of Ophthalmology, 1981
We have developed a simple procedure that uses a standard keratometer to determine the power of an intraocular lens that is still in its sterile package. The procedure is accurate to within +/-0.5 diopter and may be used in conjunction with any intraocular lens packaging system in which the convex side of a plano-convex intraocular lens is clearly ...
J T, Holladay, J, Gossey, M, Cruciger
+7 more sources
We have developed a simple procedure that uses a standard keratometer to determine the power of an intraocular lens that is still in its sterile package. The procedure is accurate to within +/-0.5 diopter and may be used in conjunction with any intraocular lens packaging system in which the convex side of a plano-convex intraocular lens is clearly ...
J T, Holladay, J, Gossey, M, Cruciger
+7 more sources
Intraocular lens power calculation for lens exchange
Journal of Cataract and Refractive Surgery, 2001To examine patients who had intraocular lens (IOL) exchange for large postoperative refractive errors and determine the factors that contributed to the error in IOL power calculation.Thirteen affiliated hospitals in Japan.This study comprised 34 cases that required IOL exchange because of large refractive errors after primary lens implantation ...
Y, Kora +4 more
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Archives of Ophthalmology, 1988
To the Editor. —I read with special interest the article on intraocular lens (IOL) power by Singh and associates1in the August 1987 issue of theArchives. All implant surgeons have to make the decision whether to use a "standard" 20-diopter (D) power lens or to customize the lens power to the eye receiving the implant.
openaire +2 more sources
To the Editor. —I read with special interest the article on intraocular lens (IOL) power by Singh and associates1in the August 1987 issue of theArchives. All implant surgeons have to make the decision whether to use a "standard" 20-diopter (D) power lens or to customize the lens power to the eye receiving the implant.
openaire +2 more sources