Results 1 to 10 of about 189,401 (272)

Agreement of Ocular Biometry Measured by LenStar LS 900 and CASIA2 Optical Coherence Tomography [PDF]

Reviews in Clinical Medicine, 2021
Introduction:The present study aimed to compare the anterior segment measurements between optical low-coherence reflectometry (LenStar LS900) and anterior segment optical coherence tomography (CASIA2 OCT). Methods:A total of 198 right eyes of 198 healthy
Maliheh Karimpour, Nasrin Moghadas Sharif, Naser Shoeibi, Negareh Yazdani, Asieh Ehsaei   +4 more
doaj   +1 more source

Comprehensive evaluation of dehydration impact on ocular tissue during Ramadan fasting [PDF]

Journal of Fasting and Health, 2015
Purpose: The present study aimed to review the effect of dehydration during Ramadan fasting on the health and ocular parameters leading to changes in eye function.
Javad Heravian, Mohsen Nematy, Negare Yazdani, Abbas Azimi, Hadi Ostadimoghaddam, Abbasali Yekta, Seyed Hosein Hoseini-Yazdi   +6 more
doaj   +3 more sources

Ocular changes in premature infants [PDF]

Reviews in Clinical Medicine, 2017
Introduction: This article aimed to review the literatures on visual impairments and ocular changes in premature infants with low birth weight and gestational age.Methods: Five electronic databases including: PubMed, Web of Science, Science direct, Ovid,
Negareh Yazdani, Leyla Shahkarami, Javad Heravian Shandiz, Veda Vakili, Hadi Ostadimoghaddam, AbbasAli Yekta, Seyed Hosein Hoseini-Yazdi   +6 more
doaj   +1 more source

The Correlation between Glucose and Lipid Biomarkers Variations with biometric characteristics and Intraocular Pressure Changes during Ramadan Fasting [PDF]

Journal of Fasting and Health, 2018
Introduction: The aim of present study was to assess the correlation between glucose and lipid biomarkers variations with biometric characteristics and intraocular pressure changes following Ramadan fasting.
Mohammad Reza Sedaghat, Nasrin Moghadas Sharif, Farshad Asgarizadeh, Tahereh Rakhshandadi, Javad Heravian Shandiz   +4 more
doaj   +1 more source

Measurement error of tracer-based velocimetry in single-phase turbulent flows with inhomogeneous refractive indices [PDF]

Exp. Therm. Fluid Sci., 136:110681 (2022), 2022
Inhomogeneous refractive index fields lead to errors in optical flow velocity measurements. Former respective studies are mostly in quasi two-dimensional flows, and attribute the measurement errors to spatial gradients in the refractive index field, while less attention has been paid to flows with three-dimensional refractive index fields which usually
arxiv   +1 more source

Effect of Phacoemulsification on Macular Thickness and Volume in Diabetic Patients without Retinopathy [PDF]

Reviews in Clinical Medicine, 2020
Introduction: This study aimed to investigate the effect of phacoemulsification on macular thickness and volume in diabetic patients without retinopathy using optical coherence tomography (OCT).Methods: This prospective study included 37 diabetics and 55
Zahra Ameri Golestan, Nasrin Moghadas Sharif, Nasser Shoeibi, Asieh Ehsaei, Alireza Eslampour, Maryam Kadkhoda, Javad Heravian Shandiz   +6 more
doaj   +1 more source

Evaluation of visual functions in Iranian hypothyroid adults

Endocrinology, Diabetes & Metabolism, 2023
Introduction The aim of this study was to investigate the effects of hypothyroidism on visual functions such as visual acuity, refractive errors, colour vision, and contrast sensitivity, among hypothyroid adults.
Somayyeh Boomi Quchan Atigh, Habibe Sadat Shakeri, Habibollah Esmaily, Azam Darvishi, Aghdas Hamidi, Javad Heravian Shandiz   +5 more
doaj   +1 more source

Part-time versus full-time occlusion therapy for treatment of amblyopia: A meta-analysis

Journal of Current Ophthalmology, 2017
Purpose: To compare full-time occlusion (FTO) and part-time occlusion (PTO) therapy in the treatment of amblyopia, with the secondary aim of evaluating the minimum number of hours of part-time patching required for maximal effect from occlusion. Methods:
Negareh Yazdani, Ramin Sadeghi, Hamed Momeni-Moghaddam, Leili Zarifmahmoudi, Asieh Ehsaei, Brendan T. Barrett   +5 more
doaj   +1 more source

Effect of Dry Eye Disease on Central Corneal Thickness and Corneal Topometric Indices Measured by Scheimpflug Tomography

Acta Medica Iranica, 2023
To evaluate the effect of dry eye disease (DED) on the central corneal thickness and anterior corneal surface irregularity parameters using Scheimpflug tomography.
Masoud Siyahkamari, Amir Asharlous, Ali Mirzajani, Hassan Koohian, Ebrahim Jafarzadepour, Hadi Ostadimoghaddam, Nazereh Babaei, Abbasali Yekta, Mehdi Khabazkhoob   +8 more
doaj   +1 more source

Super-Dispersive Demultiplexer Design Using Positive-Negative Refraction Boundary and Hetero-Photonic Crystals [PDF]

, 2022
In this paper, a systematic approach is employed to design a photonic crystal with a boundary between positive and negative refraction to boost the refractive properties of the crystal. Mathematical techniques are employed to turn the process of EFC engineering into a nearly mechanical process free of trial-and-error steps.
arxiv   +1 more source