Results 71 to 80 of about 85,760 (282)

Central corneal thickness and corneal diameter in premature infants [PDF]

Journal of American Association for Pediatric Ophthalmology and Strabismus, 2005
Abstract.Background:  Central corneal thickness is significantly greater in full‐term infants than in adults. Very little is known about corneal thickness in premature infants. Methods:  Measurements of central corneal thickness and horizontal corneal diameter were carried out in 35 premature babies (70 eyes) undergoing screening for retinopathy of ...
Caitriona, Kirwan, Michael, O'Keefe, Susan, Fitzsimon   +2 more
openaire   +2 more sources

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 more
wiley   +1 more source

Agreement of Anterior Segment Parameters Obtained From Swept-Source Fourier-Domain and Time-Domain Anterior Segment Optical Coherence Tomography. [PDF]

, 2018
PurposeTo assess the interdevice agreement between swept-source Fourier-domain and time-domain anterior segment optical coherence tomography (AS-OCT).MethodsFifty-three eyes from 41 subjects underwent CASIA2 and Visante OCT imaging.
Badr, Mai, Chansangpetch, Sunee, He, Mingguang, Lin, Shan C, Mora, Marta, Nguyen, Anwell, Porco, Travis C   +6 more
core   +2 more sources

Biodegradable Carbonate Nanogels Loaded with Anti MFAP‐5 siRNA for Anti‐stromal Therapy of Hepatocellular Carcinoma

Advanced Science, EarlyView.
Polycarbonate nanogels enable lipid‐free delivery of anti‐MFAP‐5 siRNA into cancer‐associated fibroblasts (CAF) in hepatocellular carcinoma. In a cirrhotic murine model, this approach silences MFAP‐5, reduces fibroblast activation, and suppresses tumor growth by inhibiting NOTCH/Hes1‐driven angiogenesis. CAF‐targeted MFAP‐5 RNAi and conserved signaling
Paul Schneider, Alexander Fuchs, Michael Fichter, Vanessa Bolduan, Jenny Schunke, Özlem Akilli, Nádia C. Correia, Yannick Ehlers, Christian Czysch, Pia Winterwerber, Eliana Stanganello, Barbara Schrörs, Mustafa Diken, Christoph Eckert, Shusruto Rishik, Andreas Keller, Jörn M. Schattenberg, Stephan Grabbe, Matthias Bros, Lutz Nuhn, Leonard Kaps   +20 more
wiley   +1 more source

The frequency of non-pathologically thin corneas in young healthy adults

Clinical Ophthalmology, 2019
Hannah Rashdan, Manali Shah, Danielle M RobertsonDepartment of Ophthalmology, UT Southwestern Medical Center, Dallas, TX, USAPurpose: Measurement of normal corneal thickness and corneal epithelial thickness is important in keratorefractive surgery ...
Rashdan H, Shah M, Robertson DM
doaj  

The healing effect of the collagen-glycosaminoglycan copolymer on corneal thinning

BMC Ophthalmology, 2018
Background To study the healing processes of partial thickness wounds in the adult rabbit cornea after grafting a porous collagen-glycosaminoglycan copolymer matrix (CG). Methods In this study, the regeneration of surgically-induced rabbit corneal defect
Shu-Ya Wu, Chien-Yi Pan, Elizabeth P. Shen, I-Shiang Tzeng, Wei-Cherng Hsu   +4 more
doaj   +1 more source

Anti‐Apoptotic and Neurite‐Protective Nanomedicine Augments Embryonic Stem Cells‐Derived Retinal Ganglion Cell Transplantation in Glaucoma Recovery

Advanced Science, EarlyView.
Lithium‐epigallocatechin gallate nanoparticles (Li‐EGCG NPs) are co‐transplanted with embryonic stem cell‐derived retinal ganglion cells (ESC‐RGCs) to enhance cell survival and therapeutic efficacy in an acute pathological glaucomatous injury model. This synergistic approach protects RGC cells, preserves retinal structure and improves visual function ...
Moxin Chen, Xiaoyan Jiang, Yuanhui Wang, Zhaobin Luo, Yu Zhang, Siwei Liu, Rui Huang, Dandan Zhang, Zhimin Tang, Yahan Ju, Shaohui Pan, Ni Ni, Wei Feng, Yu Chen, Ping Gu   +14 more
wiley   +1 more source

Respiratory‐Limbic Coupling via a Thalamic Circuit Alleviates Anxiety

Advanced Science, EarlyView.
This study delineates a conserved preBötCGlu→PVT→CeA circuit that gates anxiety and respiration. Activation of this circuit is anxiolytic and respiratory‐stabilizing, while its inhibition has the opposite effect. Mechanistically, PVT exerts its anxiolytic action via a disinhibitory microcircuit: its inputs preferentially target CeL GABAergic neurons ...
Shangyu Bi, Xiaoyi Wang, Huichun Luo, Ziteng Yue, Tianjiao Deng, Yuhang Liu, Xinxin Chen, Jianxu Zhao, Luo Shi, Ning Ma, Lingyan Mao, Jing Ding, Jiwen Xu, Ti‐Fei Yuan, Sheng Wang, Fang Yuan   +15 more
wiley   +1 more source

Recent Advances and Perspectives on Field‐Effect Transistors for Artificial Visual Neuromorphic Systems

Advanced Science, EarlyView.
This review presents a comprehensive overview of FET‐based visual neuromorphic systems, covering their semiconductor materials, core device architectures, and operating mechanisms. It further reviews their implementation in emulating biological visual functions, addresses current technological challenges, and outlines future development directions. The
Liu Yaqian, Lang Menghua, Xu Yihang, Zhang Manyu, Lei Chunkang, Lu Xiaozhou, Dou Yi, Wang Lingli, Jiang Liying, Hu Yuanyuan, Chen Huipeng, Jiang Lang   +11 more
wiley   +1 more source

Analysis of corneal biometry in a black South African population

African Vision and Eye Health, 2019
Background: Corneal astigmatism and central corneal thickness are important clinical parameters for cataract surgery and glaucoma, respectively. There is very little research on the central corneal thickness and the prevalence and pattern of corneal ...
Thariq Bagus, Kerry Alberto, Michel Muteba, Aubrey Makgotloe   +3 more
doaj   +1 more source