Results 201 to 210 of about 11,548 (252)

Wavefront aberrometry repeatability and agreement—A comparison between Pentacam AXL Wave, iTrace and OPD‐Scan III

Ophthalmic & physiological optics, 2022
To compare intrasession agreement and repeatability of wavefront aberration measurements from three different aberrometers obtained using Hartmann–Shack, ray tracing and automated retinoscopy methods, as well as their interdevice agreement.
K. Wan, Xu-Lin Liao, M. Yu, Rachel W Y Tsui, V. Chow, K. L. Chong, T. C. Chan   +6 more
semanticscholar   +1 more source

Optical biometry and IOL calculation in a commercially-available optical coherence tomography device and comparison with Pentacam AXL.

American journal of ophthalmology-glaucoma, 2022
PURPOSE Optical devices are the gold standard for ocular biometry, however, they are unable to obtain high quality optical coherence tomography (OCT) images.
P. Kanclerz, K. Hoffer, Natasza Bazylczyk, Xiaogang Wang, G. Savini   +4 more
semanticscholar   +1 more source

Performance of Zernike polynomials in reconstructing raw-elevation data captured by Pentacam HR, Medmont E300 and Eye Surface Profiler

Heliyon, 2021
Purpose To investigate the capability of Zernike polynomials fitting to reconstruct corneal surfaces as measured by Pentacam HR tomographer, Medmont E300 Placido-disc and Eye Surface Profiler (ESP).
Yueying Wei, Bernardo T Lopes, Ashkan Eliasy   +2 more
exaly   +2 more sources

Reproducibility, Repeatability, and Correlation of Central Corneal Thickness Measurement with the Pentacam Scheimpflug System and Ultrasound Pachymetry

Klinische Monatsblätter für Augenheilkunde, 2022
Background/Aim The importance of an accurate determination of central corneal thickness (CCT) relies on its diagnostic and therapeutic implications in glaucoma, corneal ectasias, corneal edema and endothelial function monitoring, and refractive surgery ...
Yolanda Macías-Rodríguez, Eugenia M. Ramos-Dávila, R. E. Ruiz-Lozano, Jose V Reyes-Arena, I. J. Rivera-Alvarado, J. Hernández-Camarena, Alejandro Rodríguez-García, Klinische Studie   +7 more
semanticscholar   +1 more source

Early Diagnosis of Keratoconus in Chinese Myopic Eyes by Combining Corvis ST with Pentacam

Current Eye Research, 2020
Purpose: This study was designed to evaluate and compare the sensitivity and specificity of the Belin/Ambrósio Deviation (BADD), Corneal Biomechanical Index (CBI) and Tomographic and Biomechanical Index (TBI) for the diagnosis of keratoconus in Chinese ...
Mingyue Zhang, Fengju Zhang, Yu Li, Yan-zheng Song, Zhi-qun Wang   +4 more
semanticscholar   +1 more source

Comparison of central corneal thickness measurements by Pentacam, noncontact specular microscope, and ultrasound pachymetry in normal and post-LASIK eyes

Saudi Journal of Ophthalmology, 2009
PurposeTo compare central corneal thickness (CCT) measurements taken with Pentacam, noncontact specular microscope (NCSM), and ultrasound pachymetry (US) in normal and post-laser in situ keratomileusis (LASIK) eyes and to assess the agreement between the
Al-Ageel, Saleh, Al-Muammar, Abdulrahman M.   +1 more
exaly   +2 more sources

Corneal Density with the Pentacam After Photorefractive Keratectomy

Journal of Refractive Surgery, 2011
Purpose: To measure corneal density and evaluate corneal haze in unoperated eyes and in eyes after photorefractive keratectomy (PRK). Methods: Forty-nine patients (91 eyes) who underwent PRK and 48 control patients (76 unoperated eyes) were measured with the densitometry program of ...
Agnes I, Takacs, Kata, Mihaltz, Zoltan Z, Nagy   +2 more
openaire   +2 more sources

Comparison of Central Corneal Thickness Measured With Orbscan and Pentacam

Journal of Refractive Surgery, 2007
Purpose: To compare central corneal thickness measurements obtained with Orbscan II using the acoustic equivalent correction factor (CF) and Pentacam in eyes screened for refractive surgery. Methods: Central corneal thickness in 91 ...
NICOLA ROSA, LANZA, Michele, MARIA BORRELLI, BIAGIO POLITO, MARIA LUISA FILONA, MADDALENA DE, BERNARDO   +6 more
openaire   +3 more sources

Pentacam measurements and IOL scattering

Acta Ophthalmologica, 2013
AbstractRigid and foldable intraocular lenses of various materials have shown light scattering phenomena such as surface light scattering and glistenings. The impact of these phenomena on visual function is under controversial discussion. The scattering of light in an IOL can be measured in various ways.
openaire   +1 more source

Repeatability of Corneal Thickness Measured Using an Oculus Pentacam

Optometry and Vision Science, 2009
ABSTRACT Purpose. To evaluate the repeatability of corneal thickness measurements over time, obtained with an Oculus Pentacam. Methods. Measurements of corneal thickness (apical and peripheral) were performed at three
Miranda, Marco A., Radhakrishnan, Hema; id_orcid 0000-0002-8898-2453, O'Donnell, Clare   +2 more
openaire   +3 more sources