In spite of medical treatment, she reportedly died of brain oedema on 24 May.

My data indicates that I've got about average risk for developing macular degeneration, a kind of blindness.

In many forms of blindness, like retinitis pigmentosa, or macular degeneration, the photoreceptor cells have atrophied or been destroyed.

Under pressure from the family a second autopsy was carried out, and this gave the cause as cerebral and pulmonary oedema .

The autopsy found that he had died of a subdural oedema of the brain, but no evidence was detected of beating or external trauma.

And she told me the nurses hadn't mentioned this that she was blind, that she had been completely blind from macular degeneration for five years.

and many more worldwide who are blind or are facing blindness due to diseases of the retina, diseases like macular degeneration, and there's little that can be done for them.

It was assumed that the oedema was caused by having his shoulders shaken by one of the investigators, although it was not possible to rule out the cumulative effect of a number of shakings by other investigators.

But Folkman persevered, and eventually he proved that such chemical substances do exist. Today, four decades later, such substances have been used to treat more than 10 million people with neovascular diseases such as macular degeneration and many different forms of cancer.

So what happens when a person gets a retinal degenerative disease like macular degeneration? What happens is is that, the front end cells die, the photoreceptors die, and over time, all the cells and the circuits that are connected to them, they die too.