Stem cells used to improve low vision

Conclusion These phase one/two studies have shown human embryonic stem cells can be developed into retinal cells in the laboratory and successfully transplanted into the eye, causing clinically significant visual improvements. The technique does come with the usual potential surgical complications, but other major side effects were not found. Limitations of the study include the small size, but this is normal in early trials whose primary aim is to determine safety. Larger studies will be required to determine the optimal dose and the most appropriate candidates for the technique, as it was detrimental in one person and did not improve – or gave minimal improvement to – six other people. There will also be ongoing ethical considerations for the technique, which currently uses cells left over from in vitro fertilisation (IVF). Overall, these studies show a promising treatment for two of the commonest causes of visual impairment in the developed world, though it will take a few more years of trials to optimise the technique. Analysis by Bazian. Edited by NHS Choices. Follow Behind the Headlines on Twitter. Join the Healthy Evidence forum. Links To The Headlines Embryonic stem cells transplanted into eyes of blind restore sight. The Daily Telegraph, October 15 2014 Stem cell therapy success in treatment of sight loss from macular degeneration. The Guardian, October 15 2014 Stem cell trial cures blindness for many patients – with no side effects. The Independent, ...
Source: NHS News Feed - Category: Consumer Health News Tags: Genetics/stem cells Older people Source Type: news