Results 101 to 110 of about 6,376 (199)

Comparison of corneal endothelial cell morphology in type-2 diabetes and nondiabetics

Oman Journal of Ophthalmology
BACKGROUND The purpose of this study was to evaluate and compare the values of hexagonality of endothelial cells among type-2 diabetics and nondiabetics.
Maryam Firdous, Saif Ullah, Mutahir Shah, Sadaf Qayyum, Muhammad Hasan Ansari, Amtul Aziz   +5 more
doaj   +1 more source

Microsecond X‐ray reflectometry

Journal of Applied Crystallography, Volume 59, Issue 4, Page 1112-1120, August 2026.
X‐ray reflectometry is accelerated to 213 µs net exposure time using galvanometer scanning, which enables unprecedented temporal resolution for studying dynamic thin‐film processes.We accelerate synchrotron X‐ray reflectometry (XRR) by more than an order of magnitude and demonstrate the acquisition of full reflectivity curves within 213 µs over a qz ...
Michael Haberl, Maximilian Eder, Erwin Pfeiler, David Schumi-Mareček, Florian Bertram, Petr Mikulík, Stefan Kowarik   +6 more
wiley   +1 more source

A neutron microscope using a nested Wolter‐I condenser and a bank of diffractive–refractive achromatic objectives

Journal of Applied Crystallography, Volume 59, Issue 4, Page 1282-1293, August 2026.
A neutron microscope is presented comprising a Wolter‐I nested mirror optic as condenser and a 2D array of neutron achromats as objective.We present a nested Wolter‐I mirror design for a neutron condenser, which is based on established X‐ray telescope technology.
H. F. Poulsen, C. L. Andersen, N. Ravinet, J. Vila-Comamala, M. R. D. Veeraraj, E. B. Knudsen, P. K. Willendrup, S. Massahi, F. E. Christensen, D. D. M. Ferreira, M. Strobl, C. David, L. Theil Kuhn   +12 more
wiley   +1 more source

Clinical and genetic investigation of amantadine-associated corneal edema

Clinical Ophthalmology, 2018
Michelle M Hessen, Sina Vahedi, Chloe T Khoo, Gelareh Vakili, Allen O Eghrari Division of Cornea, Cataract, & External Diseases, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Purpose: Amantadine use
Hessen MM, Vahedi S, Khoo CT, Vakili G, Eghrari AO   +4 more
doaj  

Central Corneal Thickness Measurements with Different Imaging Devices: Ultrasound Pachymetry, Noncontact Specular Microscopy, and Tono-Pachymetry. [PDF]

Beyoglu Eye J, 2022
Ceylan A, Onal I, Mergen B, Yildirim Y.
europepmc   +1 more source

Influence of Backside Surface and Subsurface Damage in Gallium Nitride Wafers on Facet Quality and Violet‐Emitting Laser Diode Performance

physica status solidi (a), Volume 223, Issue 14, 22 July 2026.
Backside thinning techniques critically influence GaN laser performance. Compared to lapping, grinding reduces subsurface damage depth fivefold and lowers wafer bow, while mechanical polishing eliminates subsurface damage entirely. These improvements directly translate to smoother cleaved facets and a nearly 40% reduction in laser threshold current ...
S. Makhladi, J. Enslin, C. Netzel, E. Freier, M. Guttmann, M. Friedler, S. Einfeldt   +6 more
wiley   +1 more source

Síndrome de Chandler

Revista Cubana de Oftalmología
El síndrome de Chandler es una de las variaciones clínicas del síndrome iridocorneoendotelial, donde el denominador común es una alteración del endotelio corneal cuyo diagnóstico es, en ocasiones, muy difícil de realizar por la complejidad y la ...
Yurisván Escalona Ballester, Yaquelín Ortiz Ávila, Esmel A Meneses Leyva, Yadira Mendoza Rodríguez, Nelson A Fernández Morales   +4 more
doaj  

Corneal endothelium and central corneal thickness changes in type 2 diabetes mellitus

Clinical Ophthalmology, 2017
Amira El-Agamy,1,2,* Shams Alsubaie3,* 1Department of Optometry and Vision Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia; 2Mansoura Ophthalmic Center, Faculty of Medicine, Mansoura University, Mansoura, Egypt;
El-Agamy A, Alsubaie S
doaj  

Specular Microscopy [PDF]

, 2020
openaire   +1 more source

CLINICAL SPECULAR MICROSCOPY: An Overview [PDF]

Australian and New Zealand Journal of Ophthalmology, 1981
openaire   +2 more sources