Results 21 to 30 of about 5,882,083 (201)

Evaluation of repeatability and agreement of two optical biometers for intraocular lens power calculation

open access: yesScientific Reports
The repeatability of two biometers (Lenstar-LS900 and Eyestar-900) to measure ocular parameters and intraocular lens (IOL) power calculation, and their agreement were evaluated. 134 eyes of 134 participants were measured thrice with each biometer.
Irene Martinez Alberquilla   +5 more
doaj   +2 more sources

Accuracy of various intraocular lens power calculation formulas in steep corneas

open access: yesJournal of Ophthalmic & Vision Research, 2017
Purpose: To compare the accuracy of four different intraocular lens (IOL) power calculation formulas for eyes with mean keratometry values greater than 46 diopters (D).
Amir Faramarzi   +2 more
doaj   +2 more sources

The effect of ocular biometric factors on the accuracy of various IOL power calculation formulas. [PDF]

open access: yesBMC Ophthalmol, 2017
Background To evaluate how differences in ocular biometry affects the Hoffer Q, Holladay 1, SRK/T, and Haigis intraocular lens power calculation formulae predictions.
Jeong J   +4 more
europepmc   +2 more sources

Influence of pupil dilation on predicted postoperative refraction and recommended IOL to obtain target postoperative refraction calculated by using third- and fourth-generation calculation formulas

open access: yesClinical Ophthalmology, 2018
Takeshi Teshigawara,1–3 Akira Meguro,3 Nobuhisa Mizuki3 1Yokosuka Chuoh Eye Clinic, Yokosuka, Kanagawa, Japan; 2Tsurumi Chuoh Eye Clinic, Yokohama, Kanagawa, Japan; 3Department of Ophthalmology, Yokohama City University School of Medicine ...
Teshigawara T, Meguro A, Mizuki N
doaj   +1 more source

Intra-operative Autorefraction for Intraocular Lens Power Calculation in Cataract Surgery [PDF]

open access: yesSiriraj Medical Journal, 2020
Objective: To evaluate the correlation between the refractive state of an aphakic eye after phacoemulsification and the appropriate intraocular lens (IOL) power for emmetropia.
Pornchai Simaroj   +2 more
doaj   +1 more source

Monte-Carlo simulation of a thick lens IOL power calculation [PDF]

open access: yes, 2023
Background: The purpose of this Monte-Carlo study is to investigate the effect of using a thick lens model instead of a thin lens model for the intraocular lens (IOL) on the resulting refraction at the spectacle plane and on the ocular magnification ...
Hoffmann, Peter   +6 more
core   +3 more sources

Accuracy of intraocular lens power calculation using Scheimpflug tomography and OKULIX ray-tracing software in paracentral corneal scarring not interfering with postoperative refraction

open access: yesDelta Journal of Ophthalmology, 2022
Purpose The aim of this study was to evaluate the accuracy of intraocular lens (IOL) power calculation using Scheimpflug tomography and OKULIX ray-tracing software in cases of paracentral corneal scarring. Patients and methods The study was conducted on
Karim M Nabil
doaj   +1 more source

Update on optical biometry and intraocular lens power calculation

open access: yesTNOA Journal of Ophthalmic Science and Research, 2017
Intraocular lens (IOL) power calculation is the single most important determinant of functionally improved result of a technically precise cataract surgery.
Nazneen Nazm, Arup Chakrabarti
doaj   +1 more source

Intraocular lens power calculation in eyes with previous corneal refractive surgery

open access: yesTherapeutic Advances in Ophthalmology, 2022
Intraocular lens (IOL) power calculation after corneal refractive surgery (CRS) becomes an expanding challenge for ophthalmologists as more and more cataract surgeries after CRS are required.
Philipp Anders   +5 more
doaj   +1 more source

IOL Power Calculation Features after Radial Keratotomy

open access: yesOftalʹmologiâ, 2022
IOL power calculation after keratorefractive surgery is an important applied aspect of cataract surgery. The probability of refractive error is especially high when calculating in patients with a history of radial keratotomy. There is no unified approach
A. A. Kasyanov, E. G. Ryzhkova
doaj   +1 more source

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