18 papers · ranked by Valyu relevance
Alexander Farnum, Galit Pelled
Developments of new strategies to restore vision and improving on current strategies by harnessing new advancements in material and electrical sciences, and biological and genetic-based technologies are of upmost health priorities around the world. Federal and private entities are spending billions of dollars on visual…
Eduardo Fernandez, Jose Antonio Robles
The past 20 years have witnessed significant advancements in the field of visual prostheses, with developments spanning from early retinal implants to recent cortical approaches. This Perspective looks at some of the remaining challenges to achieve the ambitious clinical goals that these technologies could enable.
Reham H. Elnabawy, Slim Abdennadher, Olaf Hellwich, Seif Eldawlatly
Blindness is a main threat that affects the daily life activities of any human. Visual prostheses have been introduced to provide artificial vision to the blind with the aim of allowing them to restore confidence and independence. In this article, we propose an approach that involves four image enhancement techniques…
Guoliang Xu, Jinyi Long, Jia Zhang
Visual prostheses hold great promise for restoring vision in blind individuals. While researchers have successfully utilized M/EEG signals to evoke visual perceptions during the brain decoding stage of visual prostheses, the complementary process of converting images into M/EEG signals in the brain encoding stage…
Jing Wang, Rongfeng Zhao, Peitong Li, Zhiqiang Fang + 5 more
'Yanling Han' 'Ruyan Zhou' 'Yun Zhang' 'Francesca Uccheddu'] Visual prostheses, used to assist in restoring functional vision to the visually impaired, convert captured external images into corresponding electrical stimulation patterns that are stimulated by implanted microelectrodes to induce phosphenes and eventually…
Jonathan Skaza, Shravan Murlidaran, Apurv Varshney, Ziqi Wen + 3 more
Efforts to restore vision via neural implants have outpaced the ability to predict what users will perceive, leaving patients and clinicians without reliable tools for surgical planning or device selection. To bridge this critical gap, we introduce a computational virtual patient (CVP) pipeline that integrates…
Melani Sanchez-Garcia, Roberto Morollon-Ruiz, Rubén Martínez-Cantín, J.J. Guerrero + 1 more
'J.J. Guerrero' 'Eduardo Fernández'] Abstract. Objective. Current visual implants still provide very low resolution and limited field of view, thus limiting visual acuity in implanted patients. Developments of new strategies of artificial vision simulation systems by harnessing new advancements in technologies are of…
Jaap de Ruyter van Steveninck, Mo Nipshagen, Marcel van Gerven, Umut Güçlü + 2 more
The enabling technology of visual prosthetics for the blind is making rapid progress. However, there are still uncertainties regarding the functional outcomes, which can depend on many design choices in the development. In visual prostheses with a head-mounted camera, a particularly challenging question is how to deal…
Naïg Aurelia Ludmilla Chenais, Marta Jole Ildelfonsa Airaghi Leccardi, Diego Ghezzi
Retinal prostheses hold the promise of restoring artificial vision in profoundly and totally blind people. However, a decade of clinical trials highlighted quantitative limitations hampering the possibility to reach this goal. A key obstacle to suitable retinal stimulation is the ability to independently activate…
Jacob Thomas Thorn, Enrico Migliorini, Diego Ghezzi
Retinal prostheses hold the potential to restore artificial vision in blind patients suffering from outer retinal dystrophies. The optimal number, density, and coverage of the electrodes that a retinal prosthesis should have to provide adequate artificial vision in daily activities is still an open question and an…
Jacob Granley, Alexander Riedel, Michael Beyeler
Cortical prostheses are devices implanted in the visual cortex that attempt to restore lost vision by electrically stimulating neurons. Currently, the vision provided by these devices is limited, and accurately predicting the visual percepts resulting from stimulation is an open challenge. We propose to address this…
Michael Beyeler, Geoffrey M. Boynton, Ione Fine, Ariel Rokem
By 2020 roughly 200 million people worldwide will suffer from photoreceptor diseases such as retinitis pigmentosa and age-related macular degeneration, and a variety of retinal sight restoration technologies are being developed to target these diseases. One technology, analogous to cochlear implants, uses a grid of…
Justin Kasowski, Michael Beyeler
raster pattern for retinal implants Authors: ['Justin Kasowski' 'Michael Beyeler'] Approach: Sighted participants completed letter recognition and motion discrimination tasks under four raster patterns (horizontal, vertical, checkerboard, and random) using an immersive SPV system. The simulations employed…
Melani Sanchez-Garcia, Rubén Martínez-Cantín, Jesús Bermúdez-Cameo, J.J. Guerrero
VR system Authors: ['Melani Sanchez-Garcia' 'Rubén Martínez-Cantín' 'Jesús Bermúdez-Cameo' 'J.J. Guerrero'] Visual prostheses are designed to restore partial functional vision in patients with total vision loss. Retinal visual prostheses provide limited capabilities as a result of low resolution, limited field of view…
Michael Beyeler, Ariel Rokem, Geoffrey M. Boynton, Ione Fine
The “bionic eye” – so long a dream of the future – is finally becoming a reality with retinal prostheses available to patients in both the US and Europe. However, clinical experience with these implants has made it apparent that the vision provided by these devices differs substantially from normal sight. Consequently…
Justin Kasowski, Michael Beyeler
The World Health Organization has estimated that by the year 2050, roughly 114.6 million people will be living with incurable blindness and 587.6 million people will be affected by severe visual impairment . Although some affected individuals can be treated with surgery or medication, there are no effective treatments…
Kevin Y. Wu, Mina Mina, Jean-Yves Sahyoun, Ananda Kalevar + 2 more
'Simon D. Tran' 'Antonios Kelarakis'] A retinal prosthesis, also known as a bionic eye, is a device that can be implanted to partially restore vision in patients with retinal diseases that have resulted in the loss of photoreceptors (e.g., age-related macular degeneration and retinitis pigmentosa). Recently, there have…
Zhichu Ren, Zhen Zhang, Yunsheng Tian, Ju Li
Autonomous laboratories were previously controlled mainly by scripting languages such as Python, limiting their usage among experimentalists. The recent release of OpenAI's ChatGPT API's function calling feature has enabled seamless integration and execution of Python subroutines in experimental workflows using voice…