Results 31 to 40 of about 12,103 (258)

Optimized artificial intelligence for enhanced ectasia detection using Scheimpflug-based corneal tomography and biomechanical data.

American journal of ophthalmology-glaucoma, 2022
PURPOSE To optimize artificial intelligence (AI) algorithms to integrate Scheimpflug-based corneal tomography and biomechanics to enhance ectasia detection. DESIGN Multicenter cross-sectional case-control retrospective study. METHODS 3,886 unoperated
Renato Ambrósio, A. Machado, Edileuza Leão, J. M. Lyra, Marcella Q. Salomão, L. Esporcatte, J. B. D. R. Filho, Erica Ferreira-Meneses, Nelson Sena, J. Haddad, A. Neto, Gildasio Castelo de Almeida, C. Roberts, Ahmed Elsheikh, R. Vinciguerra, P. Vinciguerra, J. Bühren, T. Kohnen, G. Kezirian, F. Hafezi, Nikki L. Hafezi, E. Torres-Netto, N. Lu, D. Kang, O. Kermani, S. Koh, P. Padmanabhan, S. Taneri, W. Trattler, L. Gualdi, J. Salgado‐Borges, F. Faria-Correia, E. Flockerzi, B. Seitz, V. Jhanji, T. C. Chan, P. Baptista, D. Reinstein, T. Archer, K. Rocha, G. Waring, R. Krueger, W. Dupps, R. Khoramnia, H. Hashemi, S. Asgari, H. Momeni-Moghaddam, S. Zarei-Ghanavati, R. Shetty, P. Khamar, M. Belin, Bernardo T. Lopes   +51 more
semanticscholar   +1 more source

Glittering Christmas tree cataract – The role of Scheimpflug, anterior segment optical coherence tomography, and biochemical analysis

Indian Journal of Ophthalmology. Case Reports, 2023
Christmas tree cataract has rarely been described. It is characterized by a polychromatic luster, the exact etiology of which is unclear. Postulated causes for this include the possible role of cholesterol or calcium deposition.
Rama Rajagopal, Anupriya Kohli, Angayarkanni Narayanasamy, Karthick Jayavel, Hemalatha Chidambaram   +4 more
doaj   +1 more source

Combinations of Scheimpflug tomography, ocular coherence tomography and air-puff tonometry improve the detection of keratoconus.

Contact lens & anterior eye : the journal of the British Contact Lens Association, 2023
PURPOSE To determine whether combinations of devices with different measuring principles, supported by artificial intelligence (AI), can improve the diagnosis of keratoconus (KC).
N. Lu, C. Koppen, F. Hafezi, S. Ní Dhubhghaill, I. Aslanides, Qin-mei Wang, Le-Le Cui, J. Rozema   +7 more
semanticscholar   +1 more source

Laser triangulation measurement system with Scheimpflug calibration based on the Monte Carlo optimization strategy.

Optics Express, 2022
We propose a linear laser triangulation measurement system using Scheimpflug calibration based on the Monte Carlo optimization strategy. A Scheimpflug inclination camera calibration model is introduced in the measurement system for improving the image ...
Ruiming Chen, Yiming Li, Gaopeng Xue, Yihao Tao, Li Xinghui   +4 more
semanticscholar   +1 more source

Revisiting Pentacam Parameters in the Diagnosis of Subclinical and Mild Keratoconus Based on Different Grading System Definitions

Türk Oftalmoloji Dergisi, 2023
Objectives: To retest the performance of Pentacam parameters in the detection of eyes with subclinical keratoconus (KC) and mild KC based on different definitions from the Amsler-Krumeich (AK), Collaborative Longitudinal Evaluation of Keratoconus (CLEK),
İbrahim Toprak, Çiğdem Martin, Celal Emre Güneş, Jorge Alio   +3 more
doaj   +1 more source

Comparison of corneal tomography using a novel swept-source optical coherence tomographer and rotating Scheimpflug system in normal and keratoconus eyes: repeatability and agreement analysis

Eye and Vision, 2022
Background To determine the repeatability and agreement using corneal tomography of a swept-source optical coherence tomographer (SS-OCT) compared to a rotating Scheimpflug camera (RSC) in normal eyes and keratoconus (KC) eyes.
R. Herber, J. Lenk, L. Pillunat, F. Raiskup   +3 more
semanticscholar   +1 more source

Combined scheimpflug and optical coherence tomography imaging in screening of keratoconus in children with Down syndrome

Delta Journal of Ophthalmology, 2023
Purpose The aim of this study was to screen for keratoconus (KC) in a sample of children with Down syndrome (DS) and to correlate the changes of combined Scheimpflug and optical coherence tomography imaging in these children and to compare it with an age-
Sarah Azzam, Tasneem Salama, Sherif Eissa, Kareem B Elessawy   +3 more
doaj   +1 more source

Pix2pix Conditional Generative Adversarial Networks for Scheimpflug Camera Color-Coded Corneal Tomography Image Generation

Translational Vision Science & Technology, 2021
Purpose To assess the ability of pix2pix conditional generative adversarial network (pix2pix cGAN) to create plausible synthesized Scheimpflug camera color-coded corneal tomography images based upon a modest-sized original dataset to be used for image ...
Hazem Abdelmotaal, Ahmed Abdou, Ahmed Omar, D. El-Sebaity, Khaled Abdelazeem   +4 more
semanticscholar   +1 more source

ESTIMATION OF MEAN CENTRAL CORNEAL THICKNESS USING SIRIUS SCHEIMPFLUG–PLACIDO TOPOGRAPHER IN BASRAH [PDF]

Basrah Journal of Surgery, 2017
ESTIMATION OF MEAN CENTRAL CORNEAL THICKNESS USING SIRIUS SCHEIMPFLUG–PLACIDO TOPOGRAPHER IN BASRAH Aymen Majeed Fadil* & Salah Zuhair Al-Asadi@ *FIBMS Ophthalmology, Basrah General Hospital.
Aymen Majeed Fadil, Salah Zuhair Al-Asadi   +1 more
doaj   +1 more source

Repeatability of Corneal Densitometry Measurements using a Scheimpflug Camera in Healthy Normal Corneas

Journal of Current Ophthalmology, 2022
Purpose: To determine the repeatability of corneal densitometry measured by the Scheimpflug imaging system. Methods: This cross-sectional study was conducted on photorefractive keratectomy candidates.
M. Pakbin, M. Khabazkhoob, M. Pakravan, A. Fotouhi, E. Jafarzadehpur, M. Aghamirsalim, H. Hashemi   +6 more
semanticscholar   +1 more source