Floaters and Flashing Lights
Many people complain of cobwebs or spots floating randomly in their vision. There are many different types reported. They usually are more noticeable against a pale background e.g. against the ceiling in the morning.
However, they are usually harmless. In a very small number of cases, the floaters can be indicative of a more serious problem. If so, the floaters are usually accompanied by flashes. If you notice these symptoms, especially flashes and floaters together, then you should consult an eye practitioner as soon as possible.