Results 51 to 60 of about 1,502,489 (240)

Temporal structure in spiking patterns of ganglion cells defines perceptual thresholds in rodents with subretinal prosthesis. [PDF]

open access: yes, 2018
Subretinal prostheses are designed to restore sight in patients blinded by retinal degeneration using electrical stimulation of the inner retinal neurons.
Goetz, Georges   +8 more
core   +3 more sources

Computational analysis of efficient organic solar cell-based retinal prosthesis using plasmonic gold nanoparticles

open access: yesFrontiers in Cellular Neuroscience, 2023
IntroductionPhotovoltaic restoration of vision, especially in conjunction with the use of silicon photodiodes, has gained attention for use in patients affected by blindness due to retinal layer disease.
Ali Rahmani, Ali Rahmani, Kyungsik Eom
doaj   +1 more source

Programmable active pixel sensor to investigate neural interactions within the retina [PDF]

open access: yes, 2009
Detection of the visual scene by the eye and the resultant neural interactions of the retina-brain system give us our perception of sight. We have developed an Active Pixel Sensor (APS) to be used as a tool for both furthering understanding of these ...
Hart MD   +5 more
core   +1 more source

Location of a Dexamethasone Implant at the Macula after Intravitreal Injection in a Silicone Oil-Filled Eye

open access: yesCase Reports in Ophthalmological Medicine, 2016
Here, we report a case with cystoid macular edema (CME) due to central retinal vein occlusion (CRVO) presented with a dexamethasone implant (Ozurdex) trapped at the macula in her silicone oil- (SO-) filled eye after injection. No additional complications
Cenap Mahmut Esenulku, Murat Gunay
doaj   +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

Modeling the Improved Visual Acuity Using Photodiode Based Retinal Implants Featuring Fractal Electrodes

open access: yesFrontiers in Neuroscience, 2018
Electronically restoring vision to patients blinded by severe retinal degenerations is rapidly becoming a realizable feat through retinal implants. Upon receiving an implant, previously blind patients can now detect light, locate objects, and determine ...
William J. Watterson   +2 more
doaj   +1 more source

Keratoprostheses for corneal blindness: a review of contemporary devices [PDF]

open access: yes, 2015
According to the World Health Organization, globally 4.9 million are blind due to corneal pathology. Corneal transplantation is successful and curative of the blindness for a majority of these cases. However, it is less successful in a number of diseases
Avadhanam, Venkata   +2 more
core   +1 more source

REVERSIBLE THERMOSENSITIVE GLUE FOR RETINAL IMPLANTS

open access: yesRetina, 2007
To determine in vitro effects of a plasma polymerized N-isopropyl acrylamide (pNIPAM) coating for thermally controllable adhesion to retinal tissue.Polyimide (50 microm), parylene C [poly(monochloro-p-xylylene)] (20 microm), and poly(dimethyl siloxane) (PDMS) (200 microm) coated with pNIPAM were used as implant materials to test retinal adhesion in ...
Tunç, Murat   +4 more
openaire   +2 more sources

Analysis of Morphologic and Functional Outcomes in Macular Edema due to Central Retinal Vein Occlusion Treated with Intravitreal Dexamethasone Implant

open access: yesJournal of Ophthalmology, 2018
Purpose. To analyze anatomic and functional retinal changes and their correlation after intravitreal dexamethasone implant (DEX implant) in patients with central retinal vein occlusion- (CRVO-) related macular edema (ME) using optical coherence ...
Alfredo Niro   +6 more
doaj   +1 more source

Assessment of Postoperative Morphologic Retinal Changes by Optical Coherence Tomography in Recipients of an Electronic Retinal Prosthesis Implant

open access: yesJAMA ophthalmology, 2019
Importance The postoperative retinal changes at the interface between an implant electrode array and the retina and whether these anatomic changes have an association with the patient visual performance are unknown.
S. Rizzo   +5 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy