Results 121 to 130 of about 7,210,127 (300)

Retinal Imaging Findings in Inherited Retinal Diseases

Journal of Clinical Medicine
Inherited retinal diseases (IRDs) represent one of the major causes of progressive and irreversible vision loss in the working-age population. Over the last few decades, advances in retinal imaging have allowed for an improvement in the phenotypic characterization of this group of diseases and have facilitated phenotype-to-genotype correlation studies.
Giulia Corradetti, Aditya Verma, Jasaman Tojjar, Louay Almidani, Deniz Oncel, Mehdi Emamverdi, Alec Bradley, Sophiana Lindenberg, Muneeswar Gupta Nittala, SriniVas R. Sadda   +9 more
openaire   +2 more sources

Ultrahigh resolution retinal imaging by visible light OCT with longitudinal achromatization.

Biomedical Optics Express, 2018
Chromatic aberrations are an important design consideration in high resolution, high bandwidth, refractive imaging systems that use visible light. Here, we present a fiber-based spectral/Fourier domain, visible light OCT ophthalmoscope corrected for the ...
S. P. Chong, Tingwei Zhang, Aaron M. Kho, Marcel T. Bernucci, A. Dubra, V. Srinivasan   +5 more
semanticscholar   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source

Future applications of fluorescence lifetime imaging ophthalmoscopy in neuro-ophthalmology, neurology, and neurodegenerative conditions

Frontiers in Neurology
Fluorescence lifetime imaging ophthalmoscopy (FLIO) has emerged as an innovative advancement in retinal imaging, with the potential to provide in vivo non-invasive insights into the mitochondrial metabolism of the retina.
Daniel M. Markowitz, Daniel M. Markowitz, Elizabeth Affel, György Hajnóczky, Robert C. Sergott   +4 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Design and application of a realistic and multifunctional retinal phantom for standardizing ophthalmic imaging systems

Communications Engineering
Retinal imaging is essential for diagnosing and treating retinal diseases. However, the lack of standardized and realistic optical phantoms limits the calibration and validation of imaging systems.
Hyun-Ji Lee, Tae Geol Lee, Il Doh, Sang-Won Lee   +3 more
doaj   +1 more source

High-speed adaptive optics line scan confocal retinal imaging for human eye

PLoS ONE, 2017
Purpose Continuous and rapid eye movement causes significant intraframe distortion in adaptive optics high resolution retinal imaging. To minimize this artifact, we developed a high speed adaptive optics line scan confocal retinal imaging system. Methods
Jing Lu, Boyu Gu, Xiaolin Wang, Yuhua Zhang   +3 more
semanticscholar   +1 more source

Photo‐Rewritable Ambipolar Organic Electrochemical Synapses with Bidirectional Optical Plasticity for Adaptive Vision in Aqueous Environments

Advanced Materials, EarlyView.
Photo‐rewritable ambipolar organic synapses operating in aqueous environments at low voltage (≤0.4 V) demonstrate bidirectional optical plasticity through photon‐modulated electrochemical doping. The bulk heterojunction device enables both excitatory and inhibitory responses with extended retention time (>130 min).
Xiaoqian Su, Xihu Wu, He Wang, Wenzhe Lu, Bing Xue, Jinli Tang, Zhangshanhao Li, Kejing Ren, Qiang He, Junyu Li, Lan Yin, Yuxin Liu, Shiming Zhang, Ting Lei, Changsheng Wu   +14 more
wiley   +1 more source

In vivo laser Doppler holography of the human retina

, 2018
The eye offers a unique opportunity for non-invasive exploration of cardiovascular diseases. Optical angiography in the retina requires sensitive measurements, which hinders conventional full-field laser Doppler imaging schemes.
Atlan, M., Fink, M., Paques, M., Puyo, L., Sahel, J. -A.   +4 more
core   +1 more source

Multi-directional optical coherence tomography for retinal imaging

Biomedical Optics Express, 2017
We introduce multi-directional optical coherence tomography (OCT), a technique for investigation of the scattering properties of directionally reflective tissue samples.
Andreas Wartak, Marco Augustin, R. Haindl, Florian Beer, M. Salas, M. Laslandes, B. Baumann, M. Pircher, C. Hitzenberger   +8 more
semanticscholar   +1 more source