Symptoms of AMD
Dry AMD causes a slow and painless loss of vision, but wet AMD can cause rapid vision loss. Over time vision can become distorted, due to the swelling and leakage of tissue around the macula, and detailed vision can be lost. A retinal examination can often detect AMD before a patient notices the visual losses. This is, in part, because one eye normally progresses more rapidly than the other, and unless the patient is looking at images with only one eye, he or she would not notice the loss of vision in the worse eye.
During a retina examination, the eye doctor may ask the patient to view a grid pattern, called an Amsler grid. A distortion detected in the grid pattern by the patient may be a sign of the disease. Once detected, the doctor may order other special tests like retinal photographs, Optical Coherence Tomography (OCT) or Fluoroscein Angiography (FA) to determine if AMD is the wet or dry form, and the extent of its progression.