A tool for assessing the accuracy of biometry
Sign Up to like & getrecommendations! Published in 2019 at "Eye"
DOI: 10.1038/s41433-019-0530-z
Abstract: Patient satisfaction and predictable refractive outcome in cataract surgery depends on accurate biometry and, as part of the validation process, it is advisable to ensure that any discrepancy in predicted intra-ocular lens (IOL) power between… read more here.
Keywords: difference; accuracy; lens power; biometry ... See more keywords
Evaluating intraocular lens power formula constant robustness using bootstrap algorithms
Sign Up to like & getrecommendations! Published in 2022 at "Acta Ophthalmologica"
DOI: 10.1111/aos.15277
Abstract: Bootstrapping is a modern technique mostly used in statistics to evaluate the robustness of model parameters. The purpose of this study was to develop a method for evaluation of formula constant uncertainties and the effect… read more here.
Keywords: using bootstrap; intraocular lens; lens power; robustness ... See more keywords
Changes in Dimensions and Functions of Crystalline Lens in High Myopia Using CASIA2 Optical Coherence Tomography
Sign Up to like & getrecommendations! Published in 2022 at "Ophthalmic Research"
DOI: 10.1159/000526246
Abstract: Introduction: Crystalline lens is the major dioptric component and varies with refractive status. In this study, we aim to evaluate the changes of dimensions and functions of crystalline lens in high myopia (HM) and its… read more here.
Keywords: changes dimensions; myopia; dimensions functions; lens power ... See more keywords
Quantitative biometric cutoffs for the choice of the intraocular lens power calculation formula for a recently introduced nondiffractive extended depth-of-focus intraocular lens.
Sign Up to like & getrecommendations! Published in 2021 at "European journal of ophthalmology"
DOI: 10.1177/11206721211065551
Abstract: PURPOSE This study aimed to analyze biometry values cutoffs for the choice of the best intraocular lens power calculation formula for AcrySof IQ Vivity intraocular lens. METHODS The study was designed as interventional case series… read more here.
Keywords: choice; lens power; depth; intraocular lens ... See more keywords
Analytical ray transfer matrix for the crystalline lens.
Sign Up to like & getrecommendations! Published in 2022 at "Biomedical optics express"
DOI: 10.1364/boe.466374
Abstract: We present the formulation of a paraxial ray transfer or ABCD matrix for onion-type GRIN lenses. In GRIN lenses, each iso-indicial surface (IIS) can be considered a refracting optical surface. If each IIS is a… read more here.
Keywords: matrix; lens power; ray transfer; grin ... See more keywords
Strategies for formula constant optimisation for intraocular lens power calculation
Sign Up to like & getrecommendations! Published in 2022 at "PLoS ONE"
DOI: 10.1371/journal.pone.0267352
Abstract: Background To investigate modern nonlinear iterative strategies for formula constant optimisation and show the application and results from a large dataset using a set of disclosed theoretical-optical lens power calculation concepts. Methods Nonlinear iterative optimisation… read more here.
Keywords: power calculation; power; optimisation; lens power ... See more keywords
Intraocular Lens Power Calculation in Eyes After Laser In Situ Keratomileusis or Photorefractive Keratectomy for Myopia
Sign Up to like & getrecommendations! Published in 2017 at "Asia-Pacific Journal of Ophthalmology"
DOI: 10.22608/apo.2017187
Abstract: Abstract: Intraocular power calculation is challenging for patients who have previously undergone corneal refractive surgery. The sources of prediction errors for these eyes are well known; however, the numerous formulas and methods available for calculating… read more here.
Keywords: power; lens power; power calculation; calculation eyes ... See more keywords
Calculation of intraocular lens power and to determine the relationship between ocular biometry and severity of diabetic retinopathy in patients with type II diabetes mellitus
Sign Up to like & getrecommendations! Published in 2021 at "Indian Journal of Ophthalmology"
DOI: 10.4103/ijo.ijo_1256_21
Abstract: Purpose: To calculate the intraocular lens power and to determine the relationship between ocular biometry and severity of diabetic retinopathy (DR) in patients with type II diabetes mellitus. Methods: The study group included 150 type… read more here.
Keywords: lens power; diabetes mellitus; power; intraocular lens ... See more keywords
A comparison of SRK/T formula with Hill RBF 2 and Barrett Universal II in the calculation of intraocular lens power.
Sign Up to like & getrecommendations! Published in 2022 at "JPMA. The Journal of the Pakistan Medical Association"
DOI: 10.47391/jpma.3842
Abstract: OBJECTIVE To compare the accuracy of SRK/T, Barrett Universal II and Hill radial basis activation function-2 formulas in intraocular lens power calculation using different axial lengths. METHODS The retrospective study was conducted at the Lahore… read more here.
Keywords: intraocular lens; group; basis; lens power ... See more keywords
Effects of pupillary dilation on ocular optical biometry outcomes in pediatric patients.
Sign Up to like & getrecommendations! Published in 2020 at "Arquivos brasileiros de oftalmologia"
DOI: 10.5935/0004-2749.20200041
Abstract: PURPOSE Pharmacological pupillary dilation is performed in comprehensive ophthalmological examinations and before biometric measurements. So far, there is no consensus regarding its impact on biometric measurements. This study's aim was to investigate the effects of… read more here.
Keywords: dilation; pupillary dilation; optical biometry; pharmacological pupillary ... See more keywords