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.
Bone Biopsy. Guide. A bone biopsy is a procedure in which a small sample of bone is taken from the body and looked at under a microscope for cancer, infection, or other bone disorders. The sample of bone can be removed by: 1  Inserting a needle through the skin and directly into the bone (closed or needle biopsy). bone biopsy is done to: 1  Confirm the diagnosis of a bone disorder (such as Paget's disease, a disease that may look like bone cancer, or bone cancer) that was found by another test, such as an X-ray, CT scan, bone scan, or a magnetic resonance imaging (MRI) scan.