Results 51 to 60 of about 46,901 (282)

Harnessing Photo‐Energy Conversion in Nanomaterials for Precision Theranostics

open access: yesAdvanced Materials, EarlyView.
Harnessing photo‐energy conversion in nanomaterials enables precision theranostics through light‐driven mechanisms such as photoluminescence, photothermal, photoelectric, photoacoustic, photo‐triggered surface‐enhanced Raman scattering (SERS), and photodynamic processes. This review explores six fundamental principles of photo‐energy conversion, recent
Jingyu Shi   +4 more
wiley   +1 more source

Automated Fovea Detection Based on Unsupervised Retinal Vessel Segmentation Method [PDF]

open access: yes, 2017
The Computer Assisted Diagnosis systems could save workloads and give objective diagnostic to ophthalmologists. At first level of automated screening of systems feature extraction is the fundamental step. One of these retinal features is the fovea.
Kalantari, Faraz   +3 more
core   +1 more source

Quantitative spatial and temporal analysis of fluorescein angiography dynamics in the eye. [PDF]

open access: yesPLoS ONE, 2014
PURPOSE: We describe a novel approach to analyze fluorescein angiography to investigate fluorescein flow dynamics in the rat posterior retina as well as identify abnormal areas following laser photocoagulation.
Flora Hui   +7 more
doaj   +1 more source

Microglia Drive Peripapillary Vascular Density Reduction in Normal Tension Glaucoma by Regulating the Rpl17/Stat5b/Apoa1 Axis

open access: yesAdvanced Science, EarlyView.
This study revealed that E50K mutant microglia drive retinal peripapillary vascular density reduction in NTG via the Rpl17/Stat5b/Apoa1 axis and identified Apoa1 as a novel suppressor of retinal vascular endothelial cells. These findings identify a potential therapeutic target for glaucoma and support the clinical potential of EA for protecting RGCs ...
Di Zhang   +9 more
wiley   +1 more source

Implantable micromechanical parylene-based pressure sensors for unpowered intraocular pressure sensing [PDF]

open access: yes, 2007
This paper presents the first implantable, unpowered, parylene-based microelectromechanical system (MEMS) pressure sensor for intraocular pressure (IOP) sensing.
Agrawal, Rajat   +7 more
core   +1 more source

Advanced Image‐Guidance and Surgical‐Navigation Techniques for Real‐Time Visualized Surgery

open access: yesAdvanced Science, EarlyView.
This review comprehensively summarizes advances in surgical navigation, covering both established and emerging intraoperative imaging technologies. It highlights mechanisms, advantages, limitations, and clinical applications, while emphasizing interdisciplinary collaboration.
Xiaoxiao Fan   +9 more
wiley   +1 more source

Rhegmatogenous retinal detachment masquerading as exudative panuveitis with intense anterior chamber inflammatory reaction. [PDF]

open access: yes, 2020
Purpose:This is a retrospective case report illustrating the diagnostic and therapeutic challenges associated with a chronic rhegmatogenous retinal detachment masquerading as a severe panuveitis with intense anterior chamber inflammation.
Bhisitkul, Robert B   +3 more
core  

Novel Retinal Imaging Technologies [PDF]

open access: yes, 2017
Newly-developed imaging techniques show extensive promise and potential to improve early detection, accurate diagnosis, and management of retinal diseases.
Li Y, Xia X, Paulus YM
core   +1 more source

Fluorescence Guided Surgery in Gastric Cancer: What Do We Have and What Can We Do?

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
ABSTRACT Background and Objective Fluorescence imaging has emerged as a valuable adjunct in gastric surgery, enhancing resection precision and oncologic outcomes. However, the use of indocyanine green (ICG) remains controversial due to uncertainties in efficacy and administration. A lack of standardized protocols persists.
Chun Zhuang, Han‐Kwang Yang
wiley   +1 more source

Impending anterior ischemic optic neuropathy with elements of retinal vein occlusion in a patient on interferon for polycythemia vera. [PDF]

open access: yes, 2012
We describe the course and likely pathophysiology of impending anterior ischemic optic neuropathy (AION) and retinal vein occlusion in a 56-year-old man with polycythemia vera managed with interferon alpha for 2 years.
Hirsch, Louis K   +2 more
core   +1 more source

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