Results 141 to 150 of about 5,603 (192)
Some of the next articles are maybe not open access.
Analysis of intraocular lens power calculation
Journal - American Intra-Ocular Implant Society, 1985We performed an analysis of ocular biometry and intraocular lens (IOL) power calculation on 100 eyes that had anterior chamber IOL implantation during 1981 and 1982. Various methods of calculating the IOL power were used, including the standard lens power, presurgical basic refraction, Fyodorov's formula, Colenbrander's formula, Binkhorst's formula ...
Y S, Liang +3 more
exaly +3 more sources
Calculation of intraocular lens power: a review
Acta Ophthalmologica, 2007This review describes the principles and practices involved in the calculation of intraocular lens (IOL) power. The theories behind formulas for calculating IOL power are described, using regression and optical methods employing 'thin lens' and 'thick lens' models, as well as exact ray-tracing methods.
exaly +4 more sources
Intraocular Lens Power Calculation
Optometry and Vision Science, 2014ABSTRACT 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
openaire +4 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
openaire +2 more sources
Calculation of intraocular lens power after trabeculectomy
Vestnik oftal'mologii, 2021To assess biometric changes in eyes after trabeculectomy (TE) and its impact on refractive outcomes of phacoemulsification (PE) in order to determine the corrections for calculation of intraocular lens (IOL) power.The study included two groups of patients: the 1st group consisted of 116 patients who were assessed by optical biometry (IOL-Master 500 ...
D.F. Belov, V.P. Nikolaenko
openaire +2 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 ...
Maya, Eibschitz-Tsimhoni +2 more
openaire +2 more sources
Biometry and intraocular lens power calculation
Current Opinion in Ophthalmology, 2008Heightened patient expectations for precise postoperative refractive results have spurred the continued improvements in biometry and intraocular lens calculations. In order to meet these expectations, attention to proper patient selection, accurate keratometry and biometry, and appropriate intraocular lens power formula selection with optimized lens ...
Alexander C, Lee +2 more
openaire +2 more sources
Intraocular lens power calculation for microphthalmos
Journal of Cataract and Refractive Surgery, 1997To evaluate the refractive results and accuracy of intraocular lens (IOL) power calculation formulas in eyes with microphthalmos.Department of Ophthalmology, Showa University Hospital, Tokyo, Japan.The accuracy of IOL power calculated using the SRK, SRK II, S-SRK, SRK/T, Holladay, and Hoffer Q formulas was evaluated in six eyes with axial lengths less ...
M, Inatomi +4 more
openaire +2 more sources
Ptosis effects on intraocular lens power calculation
Journal of Cataract & Refractive Surgery, 2023Purpose: To evaluate quantitatively ocular biometric parameters and intraocular lens (IOL) power measurements after ptosis surgery. Setting: Adiyaman University Hospital, Adiyaman, Turkey. Design: Comparative prospective clinical study.
Emre, Aydemir, Gozde, Aksoy Aydemir
openaire +2 more sources
Intraocular Lens Power Calculations for Multifocal Intraocular Lenses
American Journal of Ophthalmology, 1992We performed calculations for anterior and posterior chamber intraocular lenses, determining the necessary power for emmetropia and 3 diopters of myopia for various axial lengths and corneal powers. Our results demonstrate that to achieve an effective add of 3.00 diopters at the spectacle plane (reading distance of 33 cm), the fabricated add (labeled ...
J T, Holladay, K J, Hoffer
openaire +2 more sources