Hi, does anyone have any idea what the problem could be? My mum, aged 71, has been having quite a few episodes (becoming more common) where she suddenly loses vision in her left eye. She says the other eye is fine but she is completely blind in the left one for about 30 seconds then gradually, the vision is restored. She says it is as if someone is raising a roller blind from bottom to top as each episode ends and her vision is back to normal. Dad and I have finally persuaded her to see the GP on Monday as we are all worried.
Does anyone have any idea what this could be? Just saw something about mini-strokes which states blurred vision and temporary blindness as warning signs which has scared me a lot 
Thanks in advance