Results 21 to 30 of about 11,548 (252)

Limitations of Reconstructing Pentacam Rabbit Corneal Tomography by Zernike Polynomials [PDF]

open access: yesBioengineering, 2022
The study aims to investigate the likelihood of Zernike polynomial being used for reconstructing rabbit corneal surfaces as scanned by the Pentacam segment tomographer, and hence evaluate the accuracy of corneal power maps calculated from such Zernike ...
Mohamed Baraya   +7 more
semanticscholar   +2 more sources

Cataract Surgery in a Case of Bilateral Idiopathic Corneal Ascher Rings Associated With Anterior Segment Changes. [PDF]

open access: yesCase Rep Ophthalmol Med
Aim The aim of this study is to report an extremely rare case of corneal annular opacities, incidentally found in a patient referred for age related cataract surgery. Additional anterior segment particularities were detected in this patient. Methods Clinical and imaging methods were employed for a rigorous ophthalmological examination; a full systemic ...
Pantalon AD.
europepmc   +2 more sources

Angle Kappa and angle Alpha agreement between Pentacam Scheimpflug system, swept source optical coherence tomography and ray-tracing aberrometry

open access: yesPhotodiagnosis and Photodynamic Therapy, 2023
Purpose: To compare the consistency of Pentacam Scheimpflug system (Pentacam® HR), ray-tracing aberrometry (iTrace), and swept source optical coherence tomography (IOLMaster 700) measurements for Angle Kappa and angle Alpha.
Wanping Zhang   +5 more
doaj   +2 more sources

Evaluation of Cornea and Anterior Chamber Using Pentacam in Pediatric Cases

open access: yesTürk Oftalmoloji Dergisi, 2011
Purpose: To evaluate the anterior segment structures using Pentacam in pediatric cases. Material and Method: One hundred sixty-two eyes (study group) of 81 healthy children who attended our clinic were compared with 114 eyes (control group) of 57 ...
Melis Palamar Onay   +4 more
doaj   +2 more sources

Cataract Grading in Pure Senile Cataracts: Pentacam versus LOCS III

open access: yesJournal of Ophthalmic & Vision Research, 2022
Purpose: To determine the diagnostic accuracy of Pentacam Cataract Grading Scale (PCGS) versus the Lens Opacities Classification System (LOCS III) in scaling pure age-related cataract.
Mohammad Mirzaie   +4 more
doaj   +2 more sources

Machine learning with a reduced dimensionality representation of comprehensive Pentacam tomography parameters to identify subclinical keratoconus

open access: yesComput. Biol. Medicine, 2021
PURPOSE To investigate the performance of a machine learning model based on a reduced dimensionality parameter space derived from complete Pentacam parameters to identify subclinical keratoconus (KC). METHODS All 1692 available parameters were obtained
Ke Cao   +5 more
semanticscholar   +2 more sources

Comparison of Total Corneal Astigmatism between IOLMaster and Pentacam

open access: yesBioMed Research International, 2022
Purpose. To compare the total corneal astigmatism (TCA) measured by IOLMaster 700 and Pentacam and to investigate the consistency of corneal keratometry (CK) measured by IOLMaster and Pentacam. Methods. Cataract patients were retrospectively enrolled in March and April, 2021.
Xiaochun Li, Xiaoguang Cao, Yongzhen Bao
openaire   +3 more sources

Precision of anterior and posterior corneal curvature measurements taken with the Oculus Pentacam

open access: yesAfrican Vision and Eye Health, 2016
In the era of rapid advances in technology, new ophthalmic instruments are constantly influencing health sciences and necessitating investigations of the accuracy and precision of the new technology.
Elizabeth Chetty
doaj   +3 more sources

Comparison of Anterior Segment Biometric Measurements between Pentacam HR and IOLMaster in Normal and High Myopic Eyes. [PDF]

open access: yesPLoS ONE, 2015
To compare the anterior chamber depth (ACD), keratometry (K) and astigmatism measurements taken by IOLMaster and Pentacam HR in normal and high myopic (HM) eyes.A prospective observational case series.Sixty-six normal eyes and 59 HM eyes underwent ACD ...
Jing Dong   +6 more
doaj   +2 more sources

Comparison of corneal thickness in patients with dry eye disease using the Pentacam rotating Scheimpflug camera and anterior segment optical coherence tomography.

open access: yesPLoS ONE, 2020
The purpose of this study was to compare central corneal thickness, thinnest corneal thickness, and the thinnest point of the cornea between Pentacam and anterior segment optical coherence tomography (ASOCT) in patients with dry eye disease (DED).
Keiichi Fujimoto   +9 more
doaj   +2 more sources

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