Results 41 to 50 of about 15,879 (217)

Technical failure rates for biometry between swept-source and older-generation optical coherence methods: a review and meta-analysis

BMC Ophthalmology, 2023
Purpose Precise ocular measurements are fundamental for achieving excellent target refraction following both cataract surgery and refractive lens exchange. Biometry devices with swept-source optical coherence tomography (SS-OCT) employ longer wavelengths
Piotr Kanclerz, Idan Hecht, Raimo Tuuminen   +2 more
doaj   +1 more source

Analysis of keratometric measurements in accordance with axial length in an aged population

Scientific Reports, 2022
To investigate keratometric measurements according to axial length in an aged population. Patients requiring cataract surgery with keratometric measurements from four different ophthalmic devices (autorefractor/keratometer, Scheimpflug imaging, corneal ...
Sung Uk Han, Soyoung Ryu, Hyunjean Jung, Hyunmin Ahn, Sangyeop Kim, Ikhyun Jun, Kyoung Yul Seo, Tae-im Kim   +7 more
doaj   +1 more source

Dephasing in matter-wave interferometry [PDF]

, 2005
We review different attempts to show the decoherence process in double-slit-like experiments both for charged particles (electrons) and neutral particles with permanent dipole moments.
Berry M V, Facchi P Pascazio S Yoneda T, Fernando C Lombardo, Paula I Villar   +3 more
core   +4 more sources

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
doaj   +1 more source

Мониторинг опасных геологических процессов на территории г. Томска [PDF]

, 2009
International audienceTo assess the accuracy and signal quality of axial length measurements by partial coherence laser interferometry (PCI) for optical biometry in eyes with conventional (SO) or heavy silicone oil (HSO) as ...
Dietlein, T. S., Dinslage, Sven, Huth, J. K., Mazinani, Babac Arisa Ebrahim, Plange, Niklas, Rößler, Gernot F., Walter, Peter   +6 more
core   +3 more sources

Refractive results of cataract surgery using optical biometry and Haigis formula in eyes with refractive keratotomy

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, Virgilio Centurion   +1 more
doaj   +1 more source

The repeatability and agreement of biometric measurements by dual Scheimpflug device with integrated optical biometer

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, Sara Sardari, Abbasali Yekta, Mehdi Khabazkhoob   +3 more
doaj   +1 more source

Predictability of intraocular lens power calculation in eyes with average axial lengths: optical versus ultrasonic biometry

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, Mohammed S Abd Elaziz, Marwa A Zaky, Waleed M Nagy   +3 more
doaj   +1 more source

Interferometry of hyper-Rayleigh scattering by inhomogeneous thin films [PDF]

, 1999
The use of specific symmetry properties of the optical second-harmonic generation (the s,s-exclusion rule) has allowed us to observe high-contrast hyper-Rayleigh interference patterns in a completely diffuse light - an effect having no analog in case of ...
A. A. Fedyanin, A. A. Nikulin, Aktsipetrov, Aktsipetrov, Birge, Chang, Clays, N. E. Sherstyuk, N. V. Didenko, O. A. Aktsipetrov, Shen, Varo, Vorotilov   +12 more
core   +2 more sources

Development and Verification of an Adjustment Factor for Determining the Axial Length Using Optical Biometry in Silicone Oil-Filled Eyes

Diagnostics, 2022
The aim of this prospective clinical study was to establish and verify an adaptation for axial length (AL) measurement in silicone oil (SO)-filled pseudophakic eyes with a Scheimpflug and partial coherence interferometry (PCI)-based biometer.
Gerd U. Auffarth, Tadas Naujokaitis, Louise Blöck, Anna Daghbashyan, Jan Meis, Victor A. Augustin, Ramin Khoramnia, Timur M. Yildirim   +7 more
doaj   +1 more source