Results 41 to 50 of about 1,752,631 (186)
Al-Azhar Assiut Medical Journal, 2022 Background and aim Several studies have shown the relationship between axial length (AL) of the eye and central corneal thickness (CCT). Since genetics, ethnicity, and race can affect these factors, their differences between different societies can ...
Wafaa A.E Abdelkhalek +2 more
doaj +1 more source
Comparison of two optical biometers in intraocular lens power calculation
Indian Journal of Ophthalmology, 2014 Aims: To compare the consistency and accuracy in ocular biometric measurements and intraocular lens (IOL) power calculations using the new optical low-coherence reflectometry and partial coherence interferometry.
Sheng Hui, Lu Yi
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Multibaseline Polarimetric SAR Interferometry Coherence Optimization [PDF]
, 2008 This letter analyzes different approaches for polarimetric optimization of multibaseline (MB) interferometric coherences. Two general methods are developed to simultaneously optimize coherences for more than two data sets. The first method provides every
Ferro-Famil, Laurent +2 more
core +1 more source
Revista Brasileira de Oftalmologia, 2013 OBJECTIVE: To analyze refractive results in postoperative cataract surgery in eyes previously submitted to keratotomy using Haigis formula and data provided by IOL Master®optical biometer.
Juan Carlos Sánchez Caballero +1 more
doaj +1 more source
Low-coherence optical fibre speckle interferometry [PDF]
, 2006 This paper describes the development of optical fibre low-coherence speckle interferometers capable of three-dimensional surface profiling with a resolution of 10–20 µm and a depth range of typically tens of centimetres.
Balboa, Itziar +2 more
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Depth-Resolved Wavefront Aberrations using a Coherence-Gated Shack-Hartmann Wavefront Sensor [PDF]
, 2010 In the present paper we investigate the possibility of narrowing the depth range of a physical Shack - Hartmann (SH) wavefront sensor (WFS) by using coherence gating.
Tuohy, Simon, Podoleanu, Adrian G.H.
core +1 more source
Scientific Reports, 2022 To determine the repeatability of biometric measurements by dual Scheimpflug Devices with Integrated Optical Biometers and its agreement with partial coherence interferometry according to the axial length (AL), and the presence of cataracts.
Hassan Hashemi +3 more
doaj +1 more source
Delta Journal of Ophthalmology, 2019 Objective The aim of this study was to compare the partial coherence interferometry to ultrasound (US)-based biometry in intraocular lens (IOL) power calculation in eyes with average axial length (AL).
Amin F Ellakwa +3 more
doaj +1 more source
Coherent shift estimation for stacks of SAR images [PDF]
, 2011 Speckle tracking is used with SAR images to estimate displacements, in ways that support or integrate interferometric measurements. This paper derives Fisher information expressions for the displacement estimation using coherent speckle tracking, for the
De Zan, Francesco, Francesco De Zan
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Refractive Predictability of Partial Coherence Interferometry and Factors that can Affect It [PDF]
Korean Journal of Ophthalmology, 2009 To evaluate the refractive predictability of a partial coherence interferometry (PCI) biometry device (IOL Master) for cataract surgery and to investigate factors that may affect it.Retrospective review of 209 eyes from 151 patients that had undergone preoperative PCI biometry and an uneventful phacoemulsification cataract surgery with posterior ...
Kim, Seung Mo +2 more
openaire +2 more sources