Quite a few people these days are born with vision related problems that make it so that it is virtually impossible for them to see properly and at an appropriate distance without the use of glasses at this current point in time. As a result of the fact that this is the case, if you are in this group of people your glasses would be very near and dear to you without a shadow of a doubt, and the prospect of losing them especially in a crowded party bus ride will likely be the kind of thing that gives you an excessive amount of anxiety that you might just better off avoiding for as long as is reasonable for you.
The thing about a Jacksonville party bus that might make you lose your glasses is that it has a tendency to bring out a lot of energy in people, and this can make the environment a bit too chaotic for some. In this chaos it is highly likely that your glasses might fall, at which point even if you were to recover them and start using them once again you would still not be able to make the most of them as they would probably have broken far beyond repair.
In order to go about preventing such an occurrence from becoming too much of an obstacle for you, it is highly recommended that you purchase a pair of glasses that have a string attached to them. You can wrap this string around your neck so that if the glasses were to fall they would just start to dangle at your neck where you can pick them up again.