This happened yesterday - it's where she suddenly couldn't see anything in the right hand field of vision, so i.e. she could only see the right hand side of her face/anything she looked at. She went straight to the doctor, who diagnosed as per thread title, prescribed aspirin and has made her a neurologist appt for a weeks time. She is fit, well, normal weight, normal blood pressure etc, looks adn seems much younger than her 65 years. How worried should I be? She played it down saying there was no point in worrying atm but I need to know more really. TIA to anyone who can offer reassurance or positive stories.