Results 41 to 50 of about 2,603 (272)

Infrared reflectance as a diagnostic adjunct for subclinical commotio retinae

Indian Journal of Ophthalmology, 2014
Commotio retinae (CR) is an outer retinal disorder following blunt trauma to the eye. Histologically it is characterized by disruption of the photoreceptor outer segments (OS), typically without injury to other retinal layers.
Nicholas H Andrew, James A Slattery, Jagjit S Gilhotra   +2 more
doaj   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

Advanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky, Marcelo Sallese, Leander Kläber, Clemens Kuhn, Keming Du, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Race-, Age-, Gender-, and Refractive Error—Related Differences in the Normal Optic Disc

, 1994
Objective: To determine race-, age-, gender-, and refractive error—related differences in the size and topography of the optic disc in healthy Americans. Design: Population-based study. Setting: Eastern and southeastern health districts of Baltimore, Md.
Hilton, Sterling C., Quigley, Harry A., Tielsch, James M., Varma, Rohit, Sommer, Alfred, Katz, Joanne, Spaeth, George L.   +6 more
core   +1 more source

The role of confocal scanning laser ophthalmoscopy in stereometric differentiation of eye papilla in ocular hypertension, normal tension glaucoma and primary open-angle glaucoma [PDF]

Vojnosanitetski Pregled, 2013
Background/Aim. Primary open angle glaucoma (POAG) and normal tension glaucoma (NTG) demonstrate the same structural changes in the optic disc along with visual field defects but only POAG includes an abnormal elevation of intraocular pressure ...
Gvozdenović Ranko, Risović Dušica, Marjanović Ivan, Stamenković Miroslav, Joković Zorica, Abazi Zihret   +5 more
doaj   +1 more source

Three-Dimensional Light Field Fundus Imaging: Automatic Determination of Diagnostically Relevant Optic Nerve Head Parameters [PDF]

, 2023
Purpose: Morphological changes to the optic nerve head (ONH) can be detected at the early stages of glaucoma. Three-dimensional imaging and analysis may aid in the diagnosis.
Link, Dietmar, Schramm, Stefan, Dietmar Link, Alexander Dietzel, Wegert, Laureen, Klee, Sascha, Stefan Schramm, Sascha Klee, Laureen Wegert, Dietzel, Alexander   +9 more
core   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Surgical management of spontaneous in-the-bag intraocular lens and capsular tension ring complex dislocation

Indian Journal of Ophthalmology, 2014
We describe a technique to manage late spontaneous intraocular lens (IOL) and capsular tension ring (CTR) dislocation within the intact capsular bag. The subluxated IOL and CTR complex can be positioned in a closed chamber and fixed to the pars plana at ...
Uzeyir Gunenc, Nilufer Kocak, A Taylan Ozturk, Gul Arikan   +3 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Mild toxic anterior segment syndrome mimicking delayed onset toxic anterior segment syndrome after cataract surgery

Indian Journal of Ophthalmology, 2014
Toxic anterior segment syndrome (TASS) is an acute sterile postoperative anterior segment inflammation that may occur after anterior segment surgery. I report herein a case that developed mild TASS in one eye after bilateral uneventful cataract surgery ...
Su-Na Lee
doaj   +1 more source