Treatment for partially sighted

Rehabilitation techniques for people who have lost some of their sight after a stroke or brain injury could be delivered using hand-held games consoles or mobile phones.
More than 4,000 people are affected by hemianopia, a condition which limits sufferers' sight. Their ability to "see" could be improved by what is being dubbed as a simple, cheap and accessible training course.
The new computer-based technique was discovered after research at Durham University.
The study, published in the academic journal Brain, tested the technique on patients who suffer from hemianopia.
Sufferers lose half of their visual field due to stroke or other brain injuries.
They are heavily dependent on others as they struggle with balance, walking, finding things around the house, and they are not normally able to drive.
Professor David Mendelow, a neurosurgeon at Newcastle General Hospital and Professor of neurosurgery at Newcastle University, said: "At Newcastle General, we have trained our occupational therapists to recognise this visual problem and we can now identify patients with hemianopia at an early stage.
"The Neurosciences Unit at Durham University, where we refer patients on to, is to be congratulated on demonstrating how successful this kind of visual retraining can be."