I'm not used to wearing glasses. I wear my contacts almost all the time. I'm just more comfortable in them: I have peripheral vision, I don't have any weight on my nose, they don't slide or get smudged. It's going to be weird doing the Glasses Thing for two whole weeks. At least I'm not skating or anything right now. Doing sports in glasses is such a pain!
An interesting side effect is that eyeglasses tend to make me feel tired and/or sick. I think it is due to the fact that I mostly only wear them at night before going to bed. In general, the only times I wear glasses to work are when I'm ill. Combine that fact with the unaccustomed slight weight pressing on my nose, and I just don't feel quite right.
Hopefully I'll get more used to them in the next couple of weeks, then they won't annoy me as much. Hopefully it will be worth it, and in a little while I won't need to wear contacts OR glasses! That would be so cool.
In the meantime, at least they look kind of cute. (I hope.)