Retinal Neurons
Retinal Neurons - Related Videos
03:24
Coculturing of Retinal Ganglion Neurons with Olfactory Ensheathing Glia
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2025
This video demonstrates the procedure to isolate retinal ganglion neurons (RGNs) from a rat's retina and coculture them with olfactory ensheathing glia (OEG) cells. This method allows for studying the neuro-regenerative potential of OEGs after neural injury.
10:20
Single-cell Profiling of Developing and Mature Retinal Neurons
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Cited by 13 •
2012
A method for the isolation of single retinal cells and subsequent amplification of their cDNAs is described. Single-cell transcriptomics reveals the degree of cellular heterogeneity present in a tissue and uncovers new marker genes for rare cell populations. The accompanying protocol can be adjusted to suit many different cell types.
04:35
Light-Evoked Postsynaptic Responses in Neurons of Mouse Retinal Slices
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2025
This video demonstrates the recording of light-evoked post-synaptic responses in a dark-adapted mouse retinal tissue slice preparation. The retinal slice is placed in a recording chamber, and a recording pipette is used to establish electrical continuity with a retinal ganglion cell. Light pulses are applied to generate excitatory post-synaptic potentials in the ganglion cells, which are recorded by the pipette.
02:23
Imaging and Quantification of Axonal Regeneration in Axotomized Rat Retinal Ganglion Neurons
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2025
Source: Portela-Lomba, M., et. al. Coculture of Axotomized Rat Retinal Ganglion Neurons with Olfactory Ensheathing Glia, as an In Vitro Model of Adult Axonal Regeneration. J. Vis. Exp. (2020).This video demonstrates imaging and quantification of axonal regeneration in axotomized rat retinal ganglion neurons (RGNs) co-cultured with immortalized human olfactory ensheathing glia cells. RGNs are immunolabeled, with red somas and green axons. Images were captured using an epifluorescence microscope,...
11:39
Simultaneous Whole-cell Recordings from Photoreceptors and Second-order Neurons in an Amphibian Retinal Slice Preparation
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Cited by 29 •
2013
We describe the preparation of thin retinal slices from aquatic tiger salamanders (Ambystoma tigrinum) and explain how we use these slices to study synaptic processing in the retina by obtaining dual whole-cell voltage clamp recordings from photoreceptors and second-order horizontal and bipolar cells.
FAQs
Phototransduction links a change in illumination to chemical communication between retinal neurons. In photoreceptors, detecting light changes the phototransduction state, which changes neurotransmitter release onto bipolar cells. This conversion is important because it preserves the direction of information flow from light-sensitive cells into downstream retinal circuitry, where signals can be integrated before leaving the eye.
Horizontal and amacrine cells shape retinal signals rather than simply relay them. The source material identifies their contributions to contrast, timing, and spatial information within organized circuits. These functions help explain why retinal processing is not a one-step transfer from photoreceptors to the optic nerve, and why circuit-level studies are central to understanding visual signal refinement.
Integration by ganglion cells determines how information assembled within the retina is represented for transmission through the optic nerve. Because these cells receive signals shaped by photoreceptors, bipolar cells, and intervening circuit elements, their activity reflects more than the initial light detection event. Examining this stage connects local retinal processing with the beginning of the broader visual pathway.
Retinal neurons provide a system for examining how a sensory pathway detects environmental input, modifies that information through neural circuits, and sends it onward. Their organized progression from photoreceptor signaling to ganglion-cell output also makes them relevant to vision development studies. Work in this area can connect cellular mechanisms with the formation and function of visual processing.
Studies can examine how disruption of retinal neurons affects the pathway that begins with phototransduction and ends with transmission through the optic nerve. This focus is relevant to retinal degeneration because it links cellular injury with loss of visual signaling. The same research context supports investigation of neuroprotection and cell replacement as strategies intended to preserve or restore function.
Artificial-vision research can draw on knowledge of how retinal neurons process and refine visual information before signals travel through the optic nerve. Understanding photoreceptor input, circuit-level processing, and ganglion-cell output identifies the biological stages that an artificial approach may need to reproduce or accommodate. This makes retinal neuroscience relevant to strategies for restoring visual function.