When you have a nice pair of eyeglasses or sunglasses then you certainly want to protect them and hang on to them.
To help you do that then you will want to also own some accessories such as retainers, cords, visor clips, protective cases and belt clips.
You will also find things like nose pads something to make wearing your eyeglasses more comfortable.
And as with all things you will often need to do some minor repairs so a handy dandy little repair kit will be needed.
And, of course you will always want to keep your glasses clean so you will want to keep some wipes handy.
Maybe you want to even pick a new pair of eyeglasses or sunglasses: Designer Eyeglasses, Dior, Versace, Oakley