There is no treatment for dry AMD, but there are a number of treatments for the wet form of the condition.

BBC: Age-related macular degeneration

With dry AMD, there is usually a gradual loss of central vision.

CNN: New techniques slow progress of age-related vision loss

Over a period of years, dry AMD can progress to a gradual deterioration of retinal cells, which can result in severe vision loss or lead to the wet version of AMD.

CNN: New techniques slow progress of age-related vision loss

There are two forms of age-related macular degeneration, or AMD: the dry form, known as non-neovascular, and the wet form, called neovascular.

CNN: New techniques slow progress of age-related vision loss