This study is for people who have geographic atrophy due to age-related macular degeneration (AMD). AMD happens when the macula, the light-sensitive layer at the back of the eye called the retina, becomes damaged and causes a person's central vision to worsen. Geographic atrophy is an advanced form of AMD where cells in the retina waste away and die. Over time this can lead to permanent loss of vision. Avacincaptad pegol can help slow down the worsening or progression of geographic atrophy. Avacincaptad pegol is a treatment approved in the US to treat geographic atrophy. This study is about collecting information on how people with geographic atrophy are treated in routine clinical practice. This includes recording any medical problems from avacincaptad pegol. This is known as an observational study. Information will be collected from the peoples' medical records during and after treatment. The people in this study will have geographic atrophy in 1 or both eyes and they and their doctor has decided they will be treated with avacincaptad pegol. The individual's doctor decides on treatment, not the study sponsor (Astellas). People that want to take part in the study will have eye examinations that they would usually have as part of their routine care. People will also be asked to complete surveys about their eye health. These surveys will occur when treatment starts and then every 6 months for the first 2 years. After 2 years the surveys will happen once a year. The people on the study can take part if their doctor provides treatment with avacincaptad pegol and they want to continue with the study. The people on the study can take part for up to 3 years or up to 5 years, depending on when they start the study.