Dennis,As stated by others, floaters are more than likely a symptom of a serious problem with the retina in particular if accompanied by flashing lights in the eye. In some cases a delay in seeking treatment[ie hours!] may result in a permanent reduction in your vision or worse still a loss of legal sight.I have experienced this trauma,please do not delay in seeking specialist advice and treatment.Thanks to prompt treatment my sight was saved.Even so one has to learn to live with the resultant floaters.Wishing you all the very best.