Macular Degeneration. When the retina becomes damaged it can lead to the development of macular degeneration, also called age-related macular degeneration. When macular degeneration has developed it can cause you to be unable to see objects in the same sharp, detailed way that you used to be able to see them.
No single set of symptoms or laboratory test, such as a blood test, imaging test, genetic test, or immune function test, can independently identify MS. A doctor must use multiple tools to diagnose MS. The most important tools are the medical history, a careful and thorough neurologic exam, and magnetic resonance imaging (MRI). Other tests include visual evoked potentials (VEP) and analysis of spinal fluid taken by lumbar puncture.
No matter what type of heart disease you have, your doctor will likely perform a physical exam and ask about your personal and family medical history before doing any tests. Besides blood tests and a chest X-ray, tests to diagnose heart disease can include:1  Electrocardiogram (ECG). 2  An ECG records these electrical signals and can help your doctor detect irregularities in your heart's rhythm and structure. This test is often used to check for heart problems. 2  In a cardiac CT scan, you lie on a table inside a doughnut-shaped machine. 3  An X-ray tube inside the machine rotates around your body and collects images of your heart and chest. 4  Cardiac magnetic resonance imaging (MRI).