Retinal Cell Function
Retinal Cell Function - Related Videos
07:19
Assessing Retinal Microglial Phagocytic Function In Vivo Using a Flow Cytometry-based Assay
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Cited by 4 •
2016
Microglial phagocytosis is critical for the maintenance of tissue homeostasis and inadequate phagocytic function has been implicated in pathology. However, assessing microglia function in vivo is technically challenging. We have developed a simple but robust technique for precisely monitoring and quantifying the phagocytic potential of microglia in a physiological setting.
11:26
Single-cell RNA-Seq of Defined Subsets of Retinal Ganglion Cells
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Cited by 8 •
2017
Here, we present a combinatorial approach for classifying neuronal cell types prior to isolation and for the subsequent characterization of single-cell transcriptomes. This protocol optimizes the preparation of samples for successful RNA Sequencing (RNA-Seq) and describes a methodology designed specifically for the enhanced understanding of cellular diversity.
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.
13:02
An Isolated Retinal Preparation to Record Light Response from Genetically Labeled Retinal Ganglion Cells
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Cited by 26 •
2011
This article provides a description of how to dissect and record from the isolated retinal preparation in mouse. In particular, we describe how to record light responses from a fluorescently labeled ganglion cell population and subsequently identify and analyze its morphology.
07:22
Isolation of Retinal Stem Cells from the Mouse Eye
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Cited by 12 •
2010
In this video, we will demonstrate how to isolate retinal stem cells from the ciliary epithelium of the mouse eye and grow them in culture to form clonal retinal spheres. The spheres that are isolated possess the cardinal properties of stem cells: self-renewal and multipotentiality.
FAQs
Photon detection initiates a change in the photoreceptor membrane potential. That change converts the presence of light into a neural signal that can be passed through retinal circuits. This step is important because it links an external optical event to intracellular electrical behavior, providing the first cellular signal later refined by synaptic interactions within the retina.
These interneurons refine photoreceptor-derived signals through synaptic integration before information reaches ganglion cells. Their interactions help organize the retinal response rather than simply relaying an unchanged light signal. This intermediate processing contributes to the encoding of visual features such as contrast, color, movement, and visual patterns within the retinal network.
Ganglion cells provide the retinal output whose axons form the optic nerve. Their position at the end of the retinal processing pathway allows signals shaped by photoreceptors and interneurons to leave the eye and reach the brain. Examining ganglion-cell signaling therefore connects local retinal computation with transmission of visual information to central neural systems.
Retinal cell interactions can encode contrast, color, movement, and visual patterns. These features emerge from the way signals are refined and integrated across multiple retinal cell types, rather than from photon detection alone. Studying this organization helps neuroscience explain how cellular activity in the retina represents structured properties of the visual scene before information reaches the brain.
Analyzing the roles and interactions of retinal cells provides a cellular framework for investigating retinal degeneration. Researchers can use this knowledge to relate disrupted retinal processing to changes in visual signaling and function. The same understanding supports broader efforts to study visual disorders, making cellular mechanisms relevant to both basic neuroscience and sight-related research.
Neural prostheses and sight-restoration strategies depend on understanding how retinal circuits normally transform light into signals transmitted toward the brain. Knowledge of photoreceptors, interneurons, and ganglion-cell output provides a reference for this organization. Consequently, retinal cell research supports the development and evaluation of approaches aimed at compensating for disrupted visual processing or restoring sight.