Retinal Retina
Retinal Retina - Related Videos
05:58
Retinal Detachment Model in Rodents by Subretinal Injection of Sodium Hyaluronate
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Cited by 44 •
2013
Creating experimental retinal detachments with a reproducible and sustained height of detachment, and without subretinal hemorrhage, is important for studying the pathophysiology of photoreceptor cell loss in retinal disease and evaluating potential therapeutic interventions. Here, we report such a method in detail.
07:53
Split Retina as an Improved Flatmount Preparation for Studying Inner Nuclear Layer Neurons in Vertebrate Retina
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2024
This work presents an alternative flatmount retina preparation in which the removal of photoreceptor cell bodies enables faster antibody diffusion and improved patch pipette access to inner retinal neurons for immunohistochemistry, in situ hybridization, and electrophysiology experiments.
06:15
In Ovo Electroporation in Embryonic Chick Retina
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Cited by 10 •
2012
The overall goal of this video is to show how to perform targeted retinal injection and in ovo electroporation of DNA/RNA constructs into the chick embryonic retina at the Hamburger and Hamilton stage 22-23, which is about embryonic day 4 (E4). This technique is very useful to study gene expression, gene regulation, and morphological change in developing chick retina.
06:55
In vivo Electroporation of Morpholinos into the Adult Zebrafish Retina
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Cited by 42 •
2011
A method to conditionally knockdown a target protein’s expression in the adult zebrafish retina is described, which involves intravitreally injecting antisense morpholinos and electroporating them into the retina. The resulting protein is knocked down for several days, which allows testing the protein’s role in the regenerating or intact retina.
08:17
Organotypic Culture of Full-thickness Adult Porcine Retina
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Cited by 19 •
2011
Here we describe a cost-effective technique for organotypic culture of adult porcine retina for seven days. Briefly, a sterile filter paper was used to lift the neural retina off from the RPE and place photoreceptor side up on an insert raised by a custom-made stand.
FAQs
Photon absorption initiates phototransduction, the first biochemical step that converts light input into a neural signal. In the retina, rods and cones provide the light-sensitive entry points, after which interconnected neurons can transform the initial response rather than merely transmit it unchanged. This layered processing allows visual information to be represented in forms useful for downstream brain circuits.
Interconnected retinal neurons perform distinct stages of visual processing before signals leave the eye. Their combined activity represents features such as contrast, color, movement, and spatial patterns, rather than preserving only the original light intensity. This circuit-level transformation is important because it demonstrates how sensory coding begins before visual information reaches the brain.
The optic nerve provides the route through which processed retinal signals reach the brain. Consequently, retinal research examines not only light detection but also how neural activity is organized for transmission to central visual systems. Studying this pathway helps connect cellular and circuit mechanisms in the eye with broader questions about sensory coding and vision.
These approaches provide complementary ways to investigate retinal structure, neural activity, and disease-related change. Retinal imaging supports examination of the tissue, electrophysiology assesses electrical signaling, and disease models help researchers study pathological processes under controlled conditions. Together, they contribute to diagnosis, investigation of retinal degeneration, and evaluation of strategies intended to restore vision.
Retinal circuits offer a system for examining how visual neurons and their connections are affected by degenerative disease. Researchers can combine retinal imaging, electrophysiology, and disease models to characterize changes and relate them to impaired visual signaling. This work supports investigation of neurodegeneration while also helping connect cellular damage with functional consequences for vision.
Findings from retinal circuits and disease models can inform the development of gene therapies, prosthetic devices, and other vision-restoring interventions. Imaging and electrophysiological measurements help evaluate retinal condition and signaling, while circuit studies clarify what visual information must be recovered or replaced. These approaches link basic neuroscience with efforts to address retinal degeneration and impaired vision.