Medical Research Council - London Institute of Medical Sciences

Now in our 11th year of bringing you beautiful imagery from biomedical science every day

Vision Loss

Insight into the long lasting effects of injury to the brain's visual cortex

28 January 2022

Vision Loss

Traumatic brain injuries (TBI) are unfortunately quite common in humans. Mild cases may only affect your brain temporarily, but other more serious cases can cause long-term complications. TBI can often lead to long-lasting visual impairments like an inability to define shapes, a misalignment of the images that our brain processes from our eyes or a loss of spatial awareness. But why TBI causes these symptoms wasn’t clear until now. Researchers studied mice who had suffered a brain injury (damaged area shown in pink in these brain slices) and discovered that while the primary visual cortex, the region of the brain that processes visual cues, remained intact; there was a significant loss of neurons that were able to relay that information from the eye to the brain. Moreover, this ‘single blow’ appeared to cause permanent damage, but this knowledge is helpful to develop future therapy options including neuron transplantation.

Written by Sophie Arthur

Search The Archive

Submit An Image

What is BPoD?

BPoD stands for Biomedical Picture of the Day. Managed by the MRC London Institute of Medical Sciences the website aims to engage everyone, young and old, in the wonders of biomedicine. Images are kindly provided for inclusion on this website through the generosity of scientists across the globe.

Read More

BPoD is also available in Catalan at www.bpod.cat with translations by the University of Valencia.