My ds who is 7 , I took to the opticians today after a while of worrying about his eyes - which I've talked about in another thread. i thought he was sitting too near TV or playing play stataion for too long etc but it turns out he needs glasses, Here's what I'm confused about - he's longsighted and the optician rated it ot whatever the word is at a 6 which she said made his eyesight pretty poor. But he couldn't see the first letters on the board which were pretty big and certainly couldn't see the bottom letters- but if he's long sighted shouldn't he be able to see things at a distance? Anyway the upshot is that he's to wear gasses full-time for three months and then has to go back and get the prescripton changed and maybe after 6 months he won't need any glasses. What i'm wanitng to klnow is does the 6 mean his eye sight is bad and what the heck does long sighted mean?