An 86-year-old man who received groundbreaking stem cell treatment for macular degeneration says he feels "so lucky" to have his sight back.
Douglas Waters, 86, and a woman in her early 60s who has chosen not to be named, took part in a clinical study using genetically engineered tissue implanted into the eye.
Age-related macular degeneration is the most common form of sight loss in the UK and leads to rapid loss of central vision.
Both patients successfully regained their reading vision from barely being able to read at all.
It is the first time an engineered piece of tissue has been successfully used to treat people with sudden severe sight loss.
The study into AMD - a condition which affects more than 600,000 people in the UK - is a major milestone for the London Project to Cure Blindness.
Researchers believe it could lead to an off-the-shelf treatment within five years.