Zippi, I worried for the same reason, I thought an optician would look into my eyes and say 'omg, you've got xyz disease!' They didn't, they told me I need glasses. So I have them, with Prada frames, much nicer than I thought they'd be and now I can mn or work all day at a screen and it's fine! Go, it won't be as bad as you think. Vision Express were excellent, good service, very quick and efficient. The worst that can happen is they say you need glasses and you're diabetic if they do, you CAN deal with it and it's better that you know than that you DON'T know. You'll be relieved once it's done, bet you.