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Partial Coherence Interferometry

, 2013
Wolfgang Herrmann, Thomas Kohnen
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Partial coherence interferometry in a teaching hospital

Journal of Cataract and Refractive Surgery, 2009
Partial coherence interferometry (PCI) has an 8% to 22% failure rate for a variety of reasons such as mature cataract, inability to fixate secondary to macular degeneration, tremor, keratopathy, nystagmus, and vitreous hemorrhage. The new composite IOLMaster version 5 software has demonstrated a failure rate of 7.4%, primarily because of posterior ...
Leslie A, Wei, Nickolas, Katsoulakis, Theodoros, Filippopoulos, Paul B, Greenberg   +3 more
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Intraocular Lens Power Measured by Partial Coherence Interferometry

Optometry and Vision Science, 2012
ABSTRACT Purpose To compare the accuracy of the intraocular lens (IOL) power calculation of the Zeiss IOLMaster versus conventional automated keratometry and contact acoustic biometry after personalized optimization. Methods
Yi-Ting, Hsieh, I-Jong, Wang
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Speckle interferometry by partial coherent beam

SPIE Proceedings, 2003
By using new theoretical point of view on cross-spectral density function of the field, the propagation of partially coherent beam produce by a plane source is investigated. Then we show, experimentally, the coherence length in the source plane can be measured directly from the far zone intensity distribution.
H. Tajalli, M. Sahrai, D. Jafari
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Immersion A-scan compared with partial coherence interferometry

Journal of Cataract and Refractive Surgery, 2002
To compare 2 methods of axial length measurement, immersion ultrasonography and partial coherence interferometry, and to elucidate surgical outcomes based on immersion measurements.Oregon Eye Institute, Eugene, Oregon, USA.Axial length measurements in 50 cataractous eyes were obtained by optical biometry (IOLMaster, Zeiss Humphrey Systems) and ...
Mark, Packer, I Howard, Fine, Richard S, Hoffman, Peggy G, Coffman, Laurie K, Brown   +4 more
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Repeat-Pass SAR Interferometry With Partially Coherent Targets

IEEE Transactions on Geoscience and Remote Sensing, 2012
By means of the permanent scatterer (PS) technique, repeated spaceborne synthetic aperture radar (SAR) images with relatively low resolution (about 25 m × 5 m for the European Remote Sensing (ERS) and Envisat satellites) can be used to estimate the displacement (1-mm precision) and 3-D location (1-m precision) of targets that show an unchanged ...
Daniele Perissin, Teng Wang 0001
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Off‐axis partial coherence interferometry in myopes and emmetropes

Ophthalmic and Physiological Optics, 2012
Abstract Purpose This study describes the axial and peripheral dimensions of myopic and emmetropic eyes in a wide range of retinal locations using a non‐contact optical biometer (Zeiss IOLM aster) based upon the principle of ...
Asieh, Ehsaei, Catharine M, Chisholm, Ian E, Pacey, Edward A H, Mallen   +3 more
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Eye-length measurement by interferometry with partially coherent light

Optics Letters, 1988
With a multimode semiconductor laser we have been able to measure the optical length of the eye within a precision of 0.03 mm. A first series of in vivo measurements acoustically determined eye length.
A F, Fercher, K, Mengedoht, W, Werner
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Accuracy and reproducibility of biometry using partial coherence interferometry

Journal of Cataract and Refractive Surgery, 2002
To determine whether partial coherence interferometry is comparable to standard contact ultrasonic biometry in accuracy, reproducibility, and ease of use.Academic university practice.In this prospective study, simultaneous biometry was performed in 91 consecutive patients (111 eyes) using partial coherence interferometry (IOLMaster, Zeiss Humphrey ...
Rafe, Connors, Peter, Boseman, Randall J, Olson   +2 more
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Biometry combining Scheimpflug imaging and partial coherence interferometry versus standard partial coherence interferometry biometry

Journal Français d'Ophtalmologie
To compare measurements of mean keratometry (K), axial length (AL), Jackson first and second astigmatism vector (J0 and J45), astigmatism magnitude, white-to-white (WTW) diameter and anterior chamber depth (ACD) values between two biometers, the Pentacam® AXL and the IOL Master 500.Public hospital in Belgium.Retrospective instrument reliability ...
V.E.W.C.M. van Renterghem, F.-X. Crahay
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