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
Eye Floaters and Spots In Your Vision. Floaters come and go with eye movement. When you move your eye quickly up, down or to the side, you may see these floaters move in your light of sight, then disappear into your peripheral vision. This phenomena is caused by a reflection of microscopic fibers in the jelly-like substance (the vitreous humor) contained inside your eye, onto the retina.