Results 31 to 40 of about 3,228,378 (312)

The normal distribution of corneal eccentricity and its determinants in two rural areas of north and south of Iran

Journal of Current Ophthalmology, 2018
Purpose: The aim of this study was to determine the distribution of corneal eccentricity (E-value) in a normal population and to examine related factors.
Samira Heydarian, Hassan Hashemi, Fereshteh Shokrollahzadeh, Abbas Ali Yekta, Hadi Ostadimoghaddam, Akbar Derakhshan, Mehdi Khabazkhoob   +6 more
doaj   +1 more source

Does Long-Term Night Shift Work Cause Dry Eye in Hospital Nurses?

Journal of Ophthalmic & Vision Research, 2023
Purpose: To determine the long-term effects of night shift work on dry eye in hospital nurses. Methods: Each participant was evaluated four times, including at the beginning of the day shift (8 am), at the end of the day shift (2 pm), at the beginning of
Aria Bouyeh, Hassan Hashemi, Yousef Alizadeh, Ebrahim Jafarzadehpur, Ali Mirzajani, Hadi Ostadimoghaddam, Abbasali Yekta, Abolfazl Jafarzadehpour, Arghavan Zarei, Mehdi Khabazkhoob   +9 more
doaj   +1 more source

Refractive Errors and Concomitant Strabismus: A Systematic Review and Meta-analysis

Scientific Reports, 2016
This systematic review and meta-analysis is to evaluate the risk of development of concomitant strabismus due to refractive errors. Eligible studies published from 1946 to April 1, 2016 were identified from MEDLINE and EMBASE that evaluated any kinds of ...
S. Tang, Rachel Y. T. Chan, Shi Bin Lin, S. Rong, H. H. Lau, Winnie W. Y. Lau, W. Yip, L. J. Chen, Simon T. C. Ko, J. Yam   +9 more
semanticscholar   +1 more source

Repeatability and Agreement of Anterion with Pentacam HR and Orbscan II in Corneal Parameters after Photorefractive Keratectomy

Dubai Medical Journal
Introduction: This study aimed to evaluate the repeatability and agreement of Anterion with Pentacam HR and Orbscan II in corneal parameters after photorefractive keratectomy (PRK).
Hadi Ostadi-Moghaddam, Javad Heravian Shandiz, Mohammad Hosein Validad, Monireh Mahjoob, Abbas Ali Yekta, Sadegh Basharaf, Tahereh Rakhshandadi   +6 more
doaj   +1 more source

Refractive errors among commercial drivers

Indian Journal of Ophthalmology, 2022
Purpose: To determine the pattern of refractive error among commercial drivers in north India. Methods: Descriptive study with convenient sampling conducted among commercial drivers of north India. Results: A total of 213 (75.8%) heavy-vehicle and 68 (24.
Mukesh Kumar, Aarti Mahaseth, Shafia Parveen, Uzma Rafeeq, Lokesh Chauhan   +4 more
doaj   +1 more source

Five-Year Progression of Refractive Errors and Incidence of Myopia in School-Aged Children in Western China

Journal of Epidemiology, 2016
Background To determine the change in refractive error and the incidence of myopia among school-aged children in the Yongchuan District of Chongqing City, Western China.
Wen-jun Zhou, Yong-ye Zhang, Hua Li, Yu-fei Wu, Ji Xu, Sha Lv, Ge Li, Shichun Liu, Shengfang Song   +8 more
semanticscholar   +1 more source

Lessons Learned: Quality Analysis of Optical Coherence Tomography in Neuromyelitis Optica

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Optical coherence tomography (OCT)‐derived retina measurements are markers for neuroaxonal visual pathway status. High‐quality OCT scans are essential for reliable measurements, but their acquisition is particularly challenging in eyes with severe visual impairment, as often observed in neuromyelitis optica spectrum disorders ...
Hadi Salih, Sara Samadzadeh, Charlotte Bereuter, Seyedamirhosein Motamedi, Claudia Chien, Pablo Villoslada, Hadas Stiebel‐Kalish, Nasrin Asgari, Yang Mao‐Draayer, Marius Ringelstein, Joachim Havla, Marco Aurélio Lana Peixoto, Ho Jin Kim, Jacqueline Palace, Maria Isabel Leite, Srilakshmi M. Sharma, Fereshteh Ashtari, Rahele Kafieh, Lekha Pandit, Orhan Aktas, Philipp Albrecht, Letizia Leocani, Itay Lotan, Sasitorn Siritho, Jérôme de Seze, Romain Marignier, Caroline Froment Tilikete, Denis Bernardi Bichuetti, Ivan Maynart Tavares, Ayse Altintas, Anu Jacob, Saif Huda, Ibis Soto de Castillo, Lawrence J. Cook, Michael R. Yeaman, Axel Petzold, Alexander U. Brandt, Friedemann Paul, Frederike C. Oertel, Hanna G. Zimmermann, with the Guthy Jackson Charitable Foundation—International Clinical Consortium and CROCTINO Collaborators   +40 more
wiley   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Eye problems in children with hearing impairment

Journal of Current Ophthalmology, 2015
Purpose: To compare the prevalence of refractive errors, amblyopia, and strabismus between hearing-impaired and normal children (7–22 years old) in Mashhad.
Hadi Ostadimoghaddam, Hanieh Mirhajian, AbbasAli Yekta, Davood Sobhani Rad, Javad Heravian, Azam Malekifar, Mehdi Khabazkhoob   +6 more
doaj   +1 more source

Evaluation of refractive errors in retinopathy of prematurity screening [PDF]

Medicinski Glasnik, 2019
Aim To evaluate the frequency of refractive errors in premature children in retinopathy of prematurity (ROP) screening to find mutual connection of the prematurity level, disease activity and refractive errors.
Aida Pidro, Jasmina Alajbegović-Halimić, Nina Jovanović, Ajla Pidro   +3 more
doaj   +1 more source