There are 57 conditions associated with blurred vision, dizziness, floating spots or strings in vision and lightheadedness. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.
Bone marrow aspiration. The bone marrow aspiration is usually done first. The doctor makes a small incision, then inserts a hollow needle through the bone and into the bone marrow.Using a syringe attached to the needle, the doctor withdraws a sample of the liquid portion of the bone marrow. You may feel a brief sharp pain or stinging.one marrow aspiration. The bone marrow aspiration is usually done first. The doctor makes a small incision, then inserts a hollow needle through the bone and into the bone marrow.
1 Both procedures are usually done at the same time. 2  A bone marrow aspiration is usually done first, and then a bone marrow biopsy. 3  For a bone marrow aspiration: 4  A special needle attached to a syringe is inserted through the bone into the marrow cavity. 5  A small amount of bone marrow is withdrawn. In babies and young children, a bone marrow aspirate may be taken from the front of the lower leg bone (tibia), just below the knee. 2  A bone marrow biopsy is only taken from the hip bone. 3  Both procedures are usually done at the same time. 4  A bone marrow aspiration is usually done first, and then a bone marrow biopsy.