Full blood count. A full blood count, or FBC, is a very common blood test. Doctors use this to check a person's general health as well as screening for specific conditions, such as anaemia.
floater - spots before the eyes caused by opaque cell fragments in the vitreous humor and lens; floaters seem to drift through the field of vision musca volitans, muscae volitantes, spots symptom - (medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease
Floaters are mobile spots that occur the vision field. These spots appear when an individual directs his vision onto a bright surface such as a white piece of paper. Age-related changes are the most common causes of floaters. Aging alters the vitreous, a substance that fills and maintains the eyeball shape.