Results 41 to 50 of about 2,198,954 (282)
Using a GPS-Aided Inertial System for Coarse-Pointing of Free-Space Optical Communication Terminals [PDF]
, 2006 In the Capanina project, it has been shown that it is possible to use solely GPS positions for coarse-pointing of a stratospheric free-space optical communication terminal.
Bernhard Epple, Epple, Bernhard
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Anti-Spoof Reliable Biometry of Fingerprints Using En-Face Optical Coherence Tomography [PDF]
, 2011 Optical coherence tomography (OCT) is a relatively new imaging technology which can produce high-reso- lution images of three-dimensional structures. OCT has been mainly used for medical applications such as for ophthalmology and dermatology.
Alexander Meadway +11 more
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Calculation of iris-claw IOL power for correction of late in-the-bag IOL complex dislocation
BMC Ophthalmology, 2017 Background To assess the constants and formula for aphakia correction with iris-claw IOLs to achieve the best refractive status in cases of late in-the-bag IOL complex dislocation. Methods A literature search was performed.
Valentín Huerva +3 more
doaj +1 more source
Detection of second-order nonlinear optical magnetization by mapping normalized Stokes parameters [PDF]
, 2013 A measurable magnetic (nonlocal) contribution to the second harmonic generation (SHG) of nonmagnetic materials is an intriguing issue related to chiral materials, such as biomolecules.
Larciprete, Maria Cristina +11 more
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Ocular biometry with swept-source optical coherence tomography
Journal of Cataract & Refractive Surgery, 2021 This study aimed to summarize the outcomes reported when swept-source optical coherence tomography (SS-OCT) is used for ocular biometry. A literature search was performed to identify publications reporting clinical outcomes of patients measured with commercial SS-OCT. Twenty-nine studies were included in this review.
Robert, Montés-Micó +3 more
openaire +3 more sources
Update on optical biometry and intraocular lens power calculation
TNOA 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
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Refractive Outcomes after Cataract Surgery
Diagnostics, 2022 A post-operative manifest refractive error as close as possible to target is key when performing cataract surgery with intraocular lens (IOL) implantation, given that residual astigmatism and refractive errors negatively impact patients’ vision and ...
Ramin Khoramnia +4 more
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Inter-observer variation in clinical optic disc biometry [PDF]
Eye, 1993 This study investigated the inter-observer reproducibility of measurements of the optic nerve head as carried out with a clinical optic disc biometer. This instrument employs a modification of indirect ophthalmoscopy to enable measurement of fundus structures. Measurements were made independently by two observers on 84 eyes of 47 patients.
A A, Pyott, D M, Montgomery
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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
Measurements of the Beam-Wave Fluctuations over a 142-km Atmospheric Path [PDF]
, 2006 An optical link has been established between the Canary Islands La Palma and Tenerife. A 1064-nm transmitting laser was located on La Palma whereas a BPSK communication receiver and measurement instruments were installed in ESA's OGS on Tenerife.
Perlot, Nicolas +11 more
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