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 The antibiotic linezolid can contribute to optic nerve damage.  Sulfonamide (sulfa drugs, which many people are allergic to) can induce blurred vision, light sensitivity, and hemorrhages in the eye. They can contribute to allergic conjunctivitis.
Facts about optic neuritis. Optic neuritis can affect your vision and even cause pain. When the nerve fibers become inflamed, the optic nerve can also start to swell. This swelling typically affects one eye, but can affect both at the same time. Optic neuritis can strike both adults and children.