Results 61 to 70 of about 2,026,781 (305)

Association of Retinal Pigment Epithelium Pump Function Reversal with Choroidal Vascularity Index in Treatment-Naïve Central Serous Chorioretinopathy

Ophthalmology Science
Objective: To investigate the relationship between reversal of retinal pigment epithelium (RPE) pump function and choroidal architecture in treatment-naïve central serous chorioretinopathy (CSC), using choroidal vascularity index (CVI) as a quantitative ...
Patricia T.A. Bui, MD, Stefan Kickinger, MD, Daniel Ahmed-Balestra, MD, Martin Stattin, MD, Katharina Krepler, MD, Siamak Ansari-Shahrezaei, MD   +5 more
doaj   +1 more source

Adaptive Optics Technology for High-Resolution Retinal Imaging

Sensors, 2012
Adaptive optics (AO) is a technology used to improve the performance of optical systems by reducing the effects of optical aberrations. The direct visualization of the photoreceptor cells, capillaries and nerve fiber bundles represents the major benefit ...
Giuseppe Lombardo, Mariacristina Parravano, Nicholas Devaney, Marco Lombardo, Sebastiano Serrao   +4 more
doaj   +1 more source

Fluorescence lifetime imaging in retinal artery occlusion. [PDF]

, 2015
PURPOSE Fluorescence lifetime imaging ophthalmoscopy is a technique to measure decay times of endogenous retinal fluorophores. The purpose of this study was to investigate fluorescence lifetimes in eyes with central and branch retinal artery occlusion.
Dysli, Chantal-Simone, Zinkernagel, Martin, Wolf, Sebastian   +2 more
core   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

Advanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan, Hocheon Yoo, Benoît H. Lessard, Ioannis Kymissis, Chang‐Hyun Kim   +4 more
wiley   +1 more source

Advances in Retinal Optical Imaging

Photonics, 2018
Retinal imaging has undergone a revolution in the past 50 years to allow for better understanding of the eye in health and disease. Significant improvements have occurred both in hardware such as lasers and optics in addition to software image analysis ...
Yanxiu Li, Xiaobo Xia, Yannis M. Paulus
doaj   +1 more source

Can automated imaging for optic disc and retinal nerve fiber layer analysis aid glaucoma detection? [PDF]

, 2016
Open Access funded by Department of Health UKPurpose: To compare the diagnostic performance of automated imaging for glaucoma. Design: Prospective, direct comparison study.
Banister, K, Burr, JM, McMeekin, P, Gray, J, Jonathan Cook (3435386), Rupert R. A. Bourne (3232398), Cook, Jonathan, Charles Boachie (725223), Garway-Heath, David, Joanne Gray (468122), Pete McMeekin (16670856), Hernández, Rodolfo, Ramsay, C, Gray, Joanne, Cook, J, McMeekin, Peter, Jennifer M. Burr (16657107), Ramsay, Craig, Burr, Jennifer, Katie Banister (8982902), Craig R. Ramsay (9096188), Hernández, R, David F. Garway-Heath (8770919), Boachie, Charles, Bourne, Rupert, Burr, Jennifer M., Azuara-Blanco, A, Banister, Katie, Garway-Heath, D, Azuara-Blanco, Augusto, Bourne, R, Augusto Azuara-Blanco (6328919), Rodolfo Hernández (16670859), Boachie, C   +33 more
core   +1 more source

An Adaptive Inhibitory WSe2 Transistor for Retinomorphic In‐Sensor Image Processing

Advanced Functional Materials, EarlyView.
Conventional retinomorphic devices typically require deliberate gate‐bias tuning for each illumination condition. In this paper, we demonstrate an adaptive inhibitory WSe2 transistor that uses photo‐induced regime shift between the subthreshold and accumulation modes to achieve decision‐free, intensity‐adaptive image processing within a single pixel ...
Juhwan Baek, Junhwa Oh, Hyeonjung Kim, Minsik Park, Haein Cho, Jin Young Park, Hyeonchang Son, Taeyun Kim, Sung‐Un An, Yamin Zhang, Hyeon‐Jin Shin, Seyong Oh, Dong‐Ho Kang   +12 more
wiley   +1 more source

Multicolor imaging findings in torpedo maculopathy

Indian Journal of Ophthalmology, 2019
We describe the multicolor imaging findings in two cases of Torpedo maculopathy (TM). Multicolor imaging can be a useful tool in identifying the level of retinal and choroidal layer involvement in TM. This imaging modality further confirms the hypothesis
Ramesh Venkatesh, Bharathi Bavaharan, Naresh K Yadav   +2 more
doaj   +1 more source

In-vivo functional and structural retinal imaging using multiwavelength photoacoustic remote sensing microscopy

Scientific Reports, 2022
Many important eye diseases as well as systemic disorders manifest themselves in the retina. Retinal imaging technologies are rapidly growing and can provide ever-increasing amounts of information about the structure, function, and molecular composition ...
Zohreh Hosseinaee, Nicholas Pellegrino, Nima Abbasi, Tara Amiri, James A. Tummon Simmons, Paul Fieguth, Parsin Haji Reza   +6 more
doaj   +1 more source

Cyclic GMP in the pig vitreous and retina after experimental retinal detachment [PDF]

, 2008
Purpose: Earlier studies have revealed a decreased level of cGMP in vitreous fluid obtained from patients with a retinal detachment. To further investigate this phenomenon, we developed an experimental retinal detachment model in pigs.
Heij, E.C., La, La Heij, Ellen C, Diederen, R., Diederen, Roselie M H, Lemmens, Marijke A M, de Vente, Jan, De Vente, J., La Heij, E.C., Lemmens, M.A.M., Kijlstra, Aize, Vente, J., De, Hendrikse, F., Hendrikse, Fred, Kijlstra, A.   +13 more
core