Regarding my vision.... I'm 51 and need reading glasses at times. I don't do well with computer screens, my small iPhone screen and fluorescent lights do my head in .... But they always have. On the occasion that my derealization subsides, my vision is otherwise clear and crisp. I did check that vision link you attached. Seems the TBI vision eval is not covered by insurance. I prob don't need it by all accounts. I just want my old brain back :-)