When Rachael Stevens was 14, she was told that by the time she was 30 she'll be completely blind.
Now at 37 she's registered blind and has just started using a white cane.
Although she is registered blind, she has some sight. She talks of how she is given a seat on the tube, on account of her white cane, and then she is scowled at when she starts reading the newspaper.
She has Retinitis Pigmentosa, or RP, the most common cause of blindness among working adults.
Rachael speaks of how she was diagnosed, and how it feels to gradually loose her sight. What life is like in London becoming blind.
She's raising awareness of the challenges people face with this condition.