Results 21 to 30 of about 712,500 (261)
Analysis of retinal vessels in eyes with retinitis pigmentosa by retinal oximeter [PDF]
Acta Ophthalmologica, 2014 AbstractPurposeTo study changes in the oxygen saturation and calibre of retinal vessels in the eyes of patients with retinitis pigmentosa (RP).MethodIn this cross‐sectional study, 63 eyes of 63 patients with RP and 14 eyes of 14 healthy subjects were enrolled and examined at Toyama University Hospital. Retinal oximetry measurements were performed using
Mitsuya Otsuka +4 more
openaire +3 more sources
Machine Learning Method for Functional Assessment of Retinal Models [PDF]
, 2022 Challenges in the field of retinal prostheses motivate the development of retinal models to accurately simulate Retinal Ganglion Cells (RGCs) responses. The goal of retinal prostheses is to enable blind individuals to solve complex, reallife visual tasks.
arxiv +1 more source
Association of Systemic Inflammation With Retinal Vascular Caliber in Patients With AIDS. [PDF]
, 2019 PurposeTo evaluate relationships among retinal vascular caliber and biomarkers of systemic inflammation in patients with AIDS.MethodsA total of 454 participants with AIDS had retinal vascular caliber (central retinal artery equivalent and central retinal
Cheu, Ryan +9 more
core +1 more source
Assembly of Natively Synthesized Dual Chromophores Into Functional Actinorhodopsin
Frontiers in Microbiology, 2021 Microbial rhodopsin is a simple solar energy-capturing molecule compared to the complex photosynthesis apparatus. Light-driven proton pumping across the cell membrane is a crucial mechanism underlying microbial energy production. Actinobacteria is one of
Kimleng Chuon +8 more
doaj +1 more source
Cells, 2022 Brain and retinal organoids are functional and dynamic in vitro three-dimensional (3D) structures derived from pluripotent stem cells that spontaneously organize themselves to their in vivo counterparts.
Ilenia Martinelli +5 more
doaj +1 more source
Retinal Hemodynamics in Retinitis Pigmentosa
American Journal of Ophthalmology, 1996 To investigate the retinal hemodynamic changes occurring in patients with retinitis pigmentosa (RP).Bidirectional laser Doppler velocimetry and monochromatic fundus photography were used to determine retinal venous diameter (D), maximum erythrocyte velocity (Vmax), and volumetric blood flow (Q) in the major retinal veins of eight patients with RP and ...
Albert M. Maguire +2 more
openaire +3 more sources
Preoperative electrophysiological characterization of patients with primary macula-involving rhegmatogenous retinal detachment [PDF]
, 2018 Purpose: To determine 1) which components of retinal function are impaired after rhegmatogenous retinal detachment, 2) which outer retinal pathways (rod- or cone-driven) are more severely affected, and 3) whether there is concomitant inner retinal ...
Apte, Rajendra +3 more
core +3 more sources
Dampening Spontaneous Activity Improves the Light Sensitivity and Spatial Acuity of Optogenetic Retinal Prosthetic Responses [PDF]
, 2016 Retinitis pigmentosa is a progressive retinal dystrophy that causes irreversible visual impairment and blindness. Retinal prostheses currently represent the only clinically available vision-restoring treatment, but the quality of vision returned remains ...
Barrett, John Martin +2 more
core +1 more source
Human iPSC differentiation to retinal organoids in response to IGF1 and BMP4 activation is line- and method-dependent [PDF]
, 2020 Induced pluripotent stem cell (iPSC)‐derived retinal organoids provide a platform to study human retinogenesis, disease modeling, and compound screening.
Armstrong, Lyle +7 more
core +2 more sources
Orphanet Journal of Rare Diseases, 2006 Retinitis pigmentosa (RP) is an inherited retinal dystrophy caused by the loss of photoreceptors and characterized by retinal pigment deposits visible on fundus examination. Prevalence of non syndromic RP is approximately 1/4,000. The most common form of RP is a rod-cone dystrophy, in which the first symptom is night blindness, followed by the ...
openaire +4 more sources