Hi - i've been having this vision problem lately and i don't know if it's anything to be worried about - i'm a bit of a hypochondriac...Anyhow, just some background first, i am a web developer and spend most of the day in front of a computer - at least 8 hours / day. I also do freelance so sometimes i'm on most of the weekend. I am 28 and have had the same glasses prescription for about 8 years. Lately i've been having this problem where if i'm in a situation where there is nothing to 'occupy' my vision (i.e keep my eyes moving), my eyes almost seem to get tired and want to focus on a random object. For example, if i'm in my car @ a stoplight, my eyes might relax and 'focus' on the license plate of the car in front of me, and gradually 'relax' and start to blur slightly. It's a weird feeling. I'm very aware of this while it's happening, and i can stop it by looking away. It happens quite a few times a day, i've been dealing with some other medical issues lately so i've been particularly sensitive to things going on with my body - so i don't know if this is something that has always been there and i'm just noticing it now or what. Help!