What's your prescription?

[Wryel]

I'm pretty sure I need glasses and I'm getting my eyes tested on Saturday. I think I'm long sighted, I don't get headaches when looking at a computer screen for a long time but if I relax my eyes I can make the text go blurry.

I've had my eyes tested in the past and the first time both eyes were less than 1. The optometrist basically said I could get glasses if I wanted to but it wasn't really necessary, so I didn't bother. I can't remember what it was the second time, maybe one eye was 1.25 and the other slightly less. Anyway, the optometrist didn't even discuss whether glasses were necessary and palmed me off to a salesperson. So I'm wondering what's the minimum prescription that glasses will be of noticable help? I'm sure its a personal thing but at the same time I don't want to fork out £100+ for some glasses that are of little use.