Results 31 to 40 of about 1,752,631 (186)

Eye shape using partial coherence interferometry, autorefraction, and SD-OCT. [PDF]

open access: yesOptom Vis Sci, 2015
ABSTRACT Purpose Peripheral refraction and retinal shape may influence refractive development. Peripheral refraction has been shown to have a high degree of variability and can take considerable time to perform.
Clark CA, Elsner AE, Konynenbelt BJ.
europepmc   +4 more sources

Improving accuracy of corneal power measurement with partial coherence interferometry after corneal refractive surgery using a multivariate polynomial approach [PDF]

open access: yesBioMedical Engineering OnLine, 2018
Background To improve accuracy of IOLMaster (Carl Zeiss, Jena, Germany) in corneal power measurement after myopic excimer corneal refractive surgery (MECRS) using multivariate polynomial analysis (MPA).
Michele Lanza   +2 more
doaj   +2 more sources

Comparison of axial length using a new swept-source optical coherence tomography-based biometer - ARGOS with partial coherence interferometry- based biometer -IOLMaster among school children. [PDF]

open access: yesPLoS ONE, 2018
PurposeTo compare the axial length measurements obtained by a new swept source optical coherence tomography based biometer-ARGOS with partial coherence interferometry based biometer -IOL master in school children between the ages of 11-17.MethodsA ...
Jameel Rizwana Hussaindeen   +7 more
doaj   +2 more sources

Agreement and relationship between ultrasonic and partial coherence interferometry measurements of axial length and anterior chamber depth

open access: yesClinical Ophthalmology, 2012
Amany R Wissa, Sherein S Wahba, Maged M RoshdyAin Shams University and National Eye Hospital, Cairo, EgyptPurpose: To find the relationship between axial length (AL) and anterior chamber depth (ACD) measurements, using partial coherence interferometry ...
Wissa AR, Wahba SS, Roshdy MM
doaj   +1 more source

Spectral Domain Low- Coherence Interferometry for On-line Surface Inspection [PDF]

open access: yes, 2013
We present an on-line surface measurement technique based on spectral domain low-coherence interferometry (SD-LCI), which can obtain a one dimensional surface profile with just one shot.
Gao, F., Jiang, Xiang, Tang, Dawei
core   +4 more sources

V-groove measurement with white light interferometry [PDF]

open access: yes, 2006
White Light Interferometry (WLI) provides a fast and convenient means to measure surface profile. With sub-nanometre resolution and non-contacting operation, WLI is also a promising means to estimate surface roughness parameters.
Gao, F., Coupland, J. M., Petzing, J.
core   +5 more sources

In-process fast surface measurement using wavelength scanning interferometry [PDF]

open access: yes, 2012
A wavelength scanning interferometry system for fast areal surface measurement of micro and nano-scale surfaces which is immune to environmental noise is introduced in this paper. It can be used for surface measurement of discontinuous surface profiles
Gao, F.   +4 more
core   +4 more sources

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

open access: yesBMC 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   +2 more
doaj   +1 more source

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

open access: yesScientific 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   +7 more
doaj   +1 more source

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