The Amsler Grid Test is used to monitor the macula. This consists of a large square with multiple small, regular squares. The centre of the large square is a black dot for the patient to focus on. A patient with normal vision focusing on the centre black dot should notice that the surrounding lines and squares are regularly spaced. If there are any abnormalities (ie. missing black dot or squares and waxy lines), a consult with an ophthalmologist is necessary.