Researchers have developed a cornea implant from the collagen protein of pig skin. The implant restored the vision of 20 people with diseased corneas. The new implant could be a viable alternative to human cornea transplantation.
The discovery of new genetic signatures associated with age-related macular degeneration may lead to better diagnosis and treatment of the currently incurable vision disorder.
Researchers say Black patients are at greater risk of advanced vision loss than white patients following a diagnosis of primary open angle glaucoma.
In cognitively healthy people with a genetic risk for Alzheimer's, retinal changes have been associated with alterations in the entorhinal cortex, hippocampus, and lingual gyrus. Researchers say retinal changes can be used to track changes in brain structures associated with Alzheimer's in those with genetic risk factors.
Age-related changes in the retina may be driven by the loss of the pigment epithelium-derived factor protein. The findings could pave the way for the development of treatment for age-related macular degeneration and other age-related vision loss disorders.
The visual system adapts to the loss of photoreception by increasing sensitivity but simultaneously becomes deleteriously hyperactive. The findings could lead to new therapies to protect vision or reverse vision loss.
When it comes to famous logos and characters, people often experience a Visual Mandela Effect, or consistent, confident, and widespread false memories of such famous icons.