Retinitis Pigmentosa

Inducing visual function

Scientists from the groups of Botond Roska and Witold Filipowicz at the Friedrich Miescher Institute for Biomedical Research have resolved the mechanism controlling the maintenance of the light sensitive ...

Jul 02, 2014
popularity 5 / 5 (3) | comments 0

Making artificial vision look more natural

In laboratory tests, researchers have used electrical stimulation of retinal cells to produce the same patterns of activity that occur when the retina sees a moving object. Although more work remains, this ...

Jun 05, 2014
popularity 5 / 5 (5) | comments 0

How to build a brain-machine interface

Devices that tap directly into the nervous system can restore sensation, movement or cognitive function. These technologies, called brain-machine interfaces or BMIs, are on the rise, increasingly providing ...

Apr 25, 2014
popularity 5 / 5 (6) | comments 0

Retinitis pigmentosa (RP) is a group of genetic eye conditions that leads to incurable blindness. In the progression of symptoms for RP, night blindness generally precedes tunnel vision by years or even decades. Many people with RP do not become legally blind until their 40s or 50s and retain some sight all their lives. Others go completely blind from RP, in some cases as early as childhood. Progression of RP is different in each case.

RP is a type of progressive retinal dystrophy, a group of inherited disorders in which abnormalities of the photoreceptors (rods and cones) or the retinal pigment epithelium (RPE) of the retina lead to progressive visual loss. Affected individuals first experience defective dark adaptation or nyctalopia (night blindness), followed by reduction of the peripheral visual field (known as tunnel vision) and, sometimes, loss of central vision late in the course of the disease.

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

Children with autism have extra synapses in brain

Children and adolescents with autism have a surplus of synapses in the brain, and this excess is due to a slowdown in a normal brain "pruning" process during development, according to a study by neuroscientists ...

New DNA test for diagnosing diseases linked to childhood blindness

Researchers in the United Kingdom have demonstrated that advanced DNA testing for congenital cataracts can quickly and accurately diagnose a number of rare diseases marked by childhood blindness, according to a study published online today in Ophthalmology, the journal of the American Academy o ...