Most people who have AMD have the dry form. This condition is caused by aging and thinning of the tissues of the macula. Macular degeneration usually begins when tiny yellow or white pieces of fatty protein form under the retina.
These deposits are called drusen. Eventually, the macula may become thinner and stop working properly. With dry AMD, vision loss is usually gradual.
People who develop dry AMD must carefully and constantly monitor their central vision. If you notice any changes in your vision, you should tell Doctor Murphy right away, as the dry form can change into the more damaging form of AMD called wet (exudative) AMD.