Training course via mobile helps partially sighted people ‘see’ better

THOUSANDS of people who are partially sighted following stroke or brain injury could gain greater independence from a simple, cheap and accessible training course which could eventually be delivered from their mobile phones or hand-held games consoles, it was revealed yesterday.

Research has found that a computer-based technique developed and assessed by Durham University improved partially sighted people’s ability to “see” better.

It may eventually improve and broaden the portfolio of rehabilitation techniques for patients.

The study, published in the academic journal Brain, tested the technique on patients who suffer from a condition affecting their sight called hemianopia. Sufferers lose half their visual field due to stroke or other brain injury.

They are heavily dependent on others as they struggle with balance, walking, finding things around the house, and are not normally able to drive.

The study, which tested visual ability before and after the training, found patients became faster and more accurate at detecting objects, such as coloured dots or numbers, on a computer screen. The researchers believe the test helped patients to compensate for their lost vision by better exploring their “blind field” – the part of the visual field affected by the brain damage.

Further research is needed to pinpoint exactly why the technique helps patients to “see” better but the scientists believe it is likely due to improved attention, concentration and awareness of their visual problems.

The study findings offer hope that people who receive regular training could live more independently.

Lead researcher Dr Alison Lane said: “This research shows us that basic training works in getting people to use their ‘poor’ visual side better.

“Although we are not yet sure why this happens, we think it might be because training increases their attention, concentration and awareness of their ‘blind’ field.

“We think attention is key in improving people’s abilities to use their limitedvision. This simple technique is a very viable rehabilitation option and infuture could be easily accessible at low cost to everyone who needs it.”