Results 41 to 50 of about 2,611 (204)

Partially coherent nano-focused x-ray radiation characterized by Talbot interferometry

Optics Express, 2011
We have studied the spatial coherence properties of a nano-focused x-ray beam by grating (Talbot) interferometry in projection geometry. The beam is focused by a fixed curvature mirror system optimized for high flux density under conditions of partial coherence.
Salditt, Tim, Kalbfleisch, Sebastian, Osterhoff, Markus, Krueger, S. P., Bartels, Matthias, Giewekemeyer, Klaus, Neubauer, Heike, Sprung, Michael   +7 more
openaire   +5 more sources

Comparative Analysis of Axial Length Measurements by Optical Biometers Based on Partial Coherence Interferometry Versus Optical Low-Coherence Interferometry: An Office Audit. [PDF]

Cureus, 2022
Bhullar H, Dhurjon L, Francis C, Bhambhwani V.   +3 more
europepmc   +3 more sources

Partial coherence interferometry versus immersion ultrasonography for axial length measurement in children. [PDF]

J Cataract Refract Surg, 2010
Lenhart PD, Hutchinson AK, Lynn MJ, Lambert SR.   +3 more
europepmc   +3 more sources

Comparison of Anterior Segment Measurements with Optical Low-coherence Reflectometry and Partial-coherence Interferometry Optical Biometers.

Middle East Afr J Ophthalmol, 2016
Can E, Duran M, Çetinkaya T, Arıtürk N.   +3 more
europepmc   +2 more sources

Axial length measurements: Comparison of a new swept-source optical coherence tomography–based biometer and partial coherence interferometry in myopia

, 2017
Purpose: To compare axial length (AL) measurements between a swept-source optical coherence tomography (SS-OCT) biometer (IOLMaster 700) and a partial coherence interferometry (PCI) biometer (IOLMaster, version 5.4) in myopic eyes.
Jong Yun Yang, Hong Kyu Kim, Sung Soo Kim   +2 more
openalex   +3 more sources

Comparison of Refractive Error in Phacovitrectomy for Epiretinal Membrane using Ultrasound and Partial Coherence Interferometry

, 2015
PURPOSE: To compare the postoperative refractive error (RE) using A-scan ultrasound (US) and partial coherence interferometry (PCI) after phacovitrectomy for idiopathic epiretinal membrane (iERM) and cataract. METHODS: Eighty-eight participants (88 eyes)
Eui Chun Kang, Kyou Ho Lee, Hyoung Jun Koh   +2 more
openalex   +3 more sources

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

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

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