Retinal Damage
Retinal Damage - Related Videos
09:31
A Novel Light Damage Paradigm for Use in Retinal Regeneration Studies in Adult Zebrafish
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Cited by 19 •
2013
Multiple light damage protocols have been described to damage photoreceptors and consequently induce a retinal regeneration response in adult zebrafish. This protocol describes an improved method that can be used in pigmented animals and that damages the vast majority of rod and cone photoreceptors across the entire retina.
02:54
Preparation of Mouse Retinal Cryosections to Assess Retinal Permeability to Adeno-Associated Virus
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2026
Source: Vacca, O., et al. Using Adeno-associated Virus as a Tool to Study Retinal Barriers in Disease. J. Vis. Exp. (2015)This video demonstrates the step-by-step procedure for preparing mouse retinal cryosections to visualize adeno-associated virus permeability across disrupted retinal barriers.
25:26
In vivo-like Organotypic Murine Retinal Wholemount Culture
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Cited by 10 •
2010
This video article demonstrates the establishment of organotypic retinal wholemount cultures and a cytospin procedure for analysis of exogenously induced effects. Organotypic retinal wholemount cultures mimic the in vivo situation and significantly facilitate the accessibility of murine retinas for experimental manipulations while circumventing the disadvantages of classical murine animal models.
09:17
Using Retinal Imaging to Study Dementia
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Cited by 19 •
2017
The retina shares prominent similarities with the brain and thus represents a unique window to study vasculature and neuronal structure in the brain non-invasively. This protocol describes a method to study dementia using retinal imaging techniques. This method can potentially aid in diagnosis and risk assessment of dementia.
14:33
Morphometric Analyses of Retinal Sections
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Cited by 6 •
2012
This video demonstrates three types of morphometric analyses of the retina, which include measuring the inner nuclear layer thickness, quantifying the number of retinal ganglion cells (RGCs) and measuring the sizes of RGCs. The technique can offer a simple but scientific platform for morphometric analyses.
FAQs
Injury may affect photoreceptors, retinal neurons, or blood vessels, and each disruption can impair a different stage of visual processing. Photoreceptor injury can reduce the retina’s ability to respond accurately to light, while neuronal or vascular problems can interfere with signal transmission. The resulting impairment may involve central vision, peripheral vision, or both.
The affected retinal structures help determine how visual function is disrupted and which clinical conditions may be involved. Damage associated with the macula can affect central vision, whereas other retinal regions may influence peripheral vision. Vascular injury, neuronal dysfunction, photoreceptor loss, trauma, or separation of retinal tissue can therefore produce different patterns of impairment and require different monitoring considerations.
The consequences depend on which retinal components are affected and how extensively visual signaling is disrupted. Conditions such as diabetic retinopathy, age-related macular degeneration, retinal detachment, and trauma represent different contexts in which damage can arise. Because impairment may worsen visual function, recognizing structural or functional changes early is important for guiding treatment and follow-up.
Assessment combines evaluation of retinal structure with testing of retinal function. Retinal imaging can reveal abnormalities in tissue or blood vessels, while functional assessment helps determine whether the retina is processing light and transmitting signals effectively. Using both perspectives supports identification of retinal disorders, establishes a baseline for monitoring, and helps clinicians evaluate changes over time.
Retinal imaging and monitoring help identify and follow conditions including diabetic retinopathy, age-related macular degeneration, retinal detachment, and trauma. Structural findings can indicate affected retinal tissue, while repeated assessments can show whether abnormalities are changing. Early detection may support timely treatment, and continued monitoring helps evaluate the retina’s status after an intervention or during disease progression.
Early detection can reveal retinal abnormalities before visual impairment becomes more extensive, creating an opportunity for timely treatment and closer observation. This is particularly relevant when damage affects blood vessels, photoreceptors, neurons, or retinal attachment. In medicine, prompt assessment also provides information for tracking progression and determining whether management is preserving retinal structure and function.
Research is investigating retinal imaging, neuroprotection, and cell-based repair. Neuroprotection aims to preserve vulnerable retinal cells and their function, while cell-based strategies seek to support repair or restoration of damaged tissue. These approaches complement clinical assessment by focusing not only on detecting injury, but also on maintaining or potentially recovering visual function affected by retinal disease or trauma.