On Tuesday DS was complaining of Burren vision at school. He was fine in every other way but as he has never had anything like this before we took him to the GP and opticians the following day.
The optician was very thorough, in fact did everything twice, he was there for 2 hours. He confirmed he has weak eye muscles in his right eye and has prescribed glasses but was also concerned about his peripheral vision and wrote a report for the GP.
GP called me at home and said based on the report they have referred DS for an emergency appointment at the eye hospital and depending on the results of the tests he may need further scans. He tried to be reassuring and say they are just being thorough but now I am working myself up worrying about what could possibly be wrong and what it might mean. I've banned myself from Google as it was scaring the life out of me 
Has anyone else got experience or knowledge of this? DS is oblivious to my worry, he just can't wait to get his glasses