A man from Clevedon has become the first visually impaired person to trek to the South Pole.

31 year old former Royal Navy sailor Alan Lock has a medical condition called macular degeneration - which destroys all except for peripheral vision.

Alan - who had to drag a 60 kilogram sled in temperatures as low as minue 35 degrees celcius - was part of a team which has raised fifteen thousand pounds for the blind charity Sightsavers.