Results 1 to 10 of about 712,500 (261)

Retinal detachment in retinitis pigmentosa [PDF]

open access: yesBMJ Open Ophthalmology, 2020
ObjectiveRetinitis pigmentosa-related retinal detachment (RPRD) is rare, and the full spectrum of retinal complications is not well defined. To describe the types of retinal detachment in patients with retinitis pigmentosa and the surgical outcomes of RPRD.MethodsThis is a non-comparative, retrospective case series.
Weng Onn Chan   +4 more
openaire   +4 more sources

Diabetic retinal detachment surgery at a central academic hospital, Johannesburg, South Africa

open access: yesAfrican Vision and Eye Health, 2023
Background: Tractional retinal detachment surgery outcomes are unpredictable and need to be reviewed regularly in clinical practice settings. Aim: To describe the visual acuity and anatomical outcomes of retinal detachment surgery for diabetic ...
Mathabo Mofokeng   +1 more
doaj   +1 more source

Visual Recovery and Prognosis in the Treatment of Submacular Hemorrhage due to Polypoidal Choroidal Vasculopathy and Retinal Arterial Macroaneurysm: A Retrospective Study

open access: yesInternational Journal of Clinical Practice, 2023
Purpose. This study was carried out to evaluate the visual acuity (VA), complications, and prognosis of patients diagnosed with submacular hemorrhage (SMH) from polypoidal choroidal vasculopathy (PCV) and retinal arterial macroaneurysm (RAM) treated by ...
Jianhua Wu   +8 more
doaj   +1 more source

Creation of photocyclic vertebrate rhodopsin by single amino acid substitution

open access: yeseLife, 2022
Opsins are universal photoreceptive proteins in animals and can be classified into three types based on their photoreaction properties. Upon light irradiation, vertebrate rhodopsin forms a metastable active state, which cannot revert back to the original
Kazumi Sakai   +3 more
doaj   +1 more source

Role of Thr82 for the unique photochemistry of TAT rhodopsin

open access: yesBiophysics and Physicobiology, 2021
Marine bacterial TAT rhodopsin possesses the pKa of the retinal Schiff base, the chromophore, at neutral pH, and photoexcitation of the visible protonated state forms the isomerized 13-cis state, but reverts to the original state within 10–5 sec.
Teppei Sugimoto   +2 more
doaj   +1 more source

Serum Retinal and Retinoic Acid Predict the Development of Type 2 Diabetes Mellitus in Korean Subjects with Impaired Fasting Glucose from the KCPS-II Cohort

open access: yesMetabolites, 2021
We aimed to investigate whether retinal and retinoic acid (RA), which are newly discovered biomarkers from our previous research, reliably predict type 2 diabetes mellitus (T2DM) development in subjects with impaired fasting glucose (IFG).
Youngmin Han   +5 more
doaj   +1 more source

A Comprehensive Review of Retinal Vascular and Optical Nerve Diseases Based on Optical Coherence Tomography Angiography

open access: yesApplied Sciences, 2021
The optical coherence tomography angiography (OCTA) is a noninvasive imaging technology which aims at imaging blood vessels in retina by studying decorrelation signals between multiple sequential OCT B-scans captured in the same cross section.
Fatma Taher   +8 more
doaj   +1 more source

Retinal Organoids and Retinal Prostheses: An Overview

open access: yesInternational Journal of Molecular Sciences, 2022
Despite the progress of modern medicine in the last decades, millions of people diagnosed with retinal dystrophies (RDs), such as retinitis pigmentosa, or age-related diseases, such as age-related macular degeneration, are suffering from severe visual impairment or even legal blindness.
Alessandro Bellapianta   +3 more
openaire   +3 more sources

ResWnet for Retinal Small Vessel Segmentation

open access: yesIEEE Access, 2020
U-Net shows excellent performance in biomedical image segmentation tasks, Variants of U-Net have been proposed, such as U-Net with residual blocks, densely connected convolution, or deformed convolution.
Yu Tang   +4 more
doaj   +1 more source

Retinal Plasticity [PDF]

open access: yesInternational Journal of Molecular Sciences, 2022
Brain plasticity is a well-established concept designating the ability of central nervous system (CNS) neurons to rearrange as a result of learning, when adapting to changeable environmental conditions or else while reacting to injurious factors. As a part of the CNS, the retina has been repeatedly probed for its possible ability to respond plastically
Enrica Strettoi   +3 more
openaire   +2 more sources

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