In the case of leukemia, the cancer interferes with the body's ability to make blood. Leukemia attacks the bone marrow and the blood itself, causing fatigue, anemia, weakness, and bone pain. It is diagnosed with a blood test in which specific types of blood cells are counted.amples of blood from a healthy person and from one with leukemia, a type of blood cancer. Leukemia is often diagnosed after blood testing. Hematologists analyze blood cancer samples. Swollen lymph nodes are one symptom of lymphoma. Red blood cells.
1 Mirtazapine, prescribed for depression can lead to optic nerve damage and/or glaucoma.  Prozac may cause dilated pupils, double vision, blurred vision, and dry eyes. It can also cause eye pain, eye lid infection (blepharitis), cataracts, glaucoma, ptosis (eyelid droop), and an inflammation of the iris (iritis).
What causes neuromyelitis optica? With NMO, your immune system attacks a substance in your body called myelin â the insulation around your nerves. Specifically, the myelin cells in the spinal cord and optic nerves are attacked. Usually, people with NMO have flare-ups of the disease that may strike months or years apart.