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.
Laboratory Tests. 1  Laboratory tests can be useful to help diagnose conditions with symptoms similar to fibromyalgia, such as rheumatoid arthritis, SjÃ¶gren syndrome, thyroid disease, and lupus. It is not usually cost effective or necessary to do extensive screening. General tests that may be ordered include: 1  CMP (comprehensive metabolic panel) â to examine electrolytes, proteins, liver and kidney function, calcium, and glucose. 2  CBC (complete blood count) â to look for anemia, a possible cause of weakness and fatigue.