The Amsler Grid is a simple test that can be used to monitor AMD at home. The grid will alert you to any changes that may indicate a problem or the worsening of AMD. The Amsler Grid looks like graph paper, with dark lines forming a square grid. Some versions have white lines on a dark background. You can download a copy for printing here. One of the first signs of macular degeneration can be waviness, distortion, blurring or missing areas on the grid. The Amsler Grid can help you spot these early.