Next, under such situations, such annoying symptoms would usually come and go within a very short period of time and certainly the conditions would get better and better from time to time especially when certain related treatments are sought and administered to deal with the symptom.
However, under rare circumstances when the eye twitch symptom just get progressively and chronically and seriously unmitigated from bad to worse as well as seem to last permanently even when all sorts of related treatments are adminstered upon such illness to deal with it, such non-stop eye twitching symptom may then simply just manifest as one of the serious neuromuscular / neurological symptoms of :
# Tardive Dyskinesia (rapid involuntary uncontrollable eye blinking / eye twitching), which in most cases are caused by the neuromuscular / neurological side effects of certain powerful mind-altering medications and other neurological complications. Whilst the underlying mechanism of such a disease is such that the normal functionings of the neurotransmitters chemical dopamine which co-ordinates the miscellaneous human body movements in this case are disturbed, antagonized and disrupted in this case resulting in one's loss of control of human body movements, and in this case, one's eye / eyelids organ.
In such a connection, in terms of the landmark & prominent Tardive Dyskinesia symptom of abnormally rapid eyelid twitching / eye blinking as described and mentioned above, since the eyelids' organ-movements-related neurotransmitters chemicals - dopamine produced by the nerve cells / neurons are totally transparent while the eye nerves / brain cells remain undamaged, the MRI / CT-scannings would thus not be able to show and detect anything abnormal and unusual at all for their Blepharospasm / chronic eye blinking / eyelid twitching disorders, and then almost in all cases, their Blepharospasm / chronic eyelid twithcing / eye blinking disorders would then be labelled "accordingly" as "undiagnosable" / "unexplainable" by the related mainstream medical personnel, and then they are suggested to get surgery / perpetually continual Botox injections to deal with such chronic neuromuscular and visually-incapacitating disorders.
All in all, for the undiagnosed medical phenomenon and scenario described above, well, regardless of how advanced the mainstream medical sciences are nowadays, their are still lots of medical and pathological conditions that remain unexplained and are pending to be deeply examined and explored in the sense that anything that cannot be examined / observed / explained to date simply do not mean that they do not exist at all.