Jabout
At the moment there is no way you can use glasses or contacts or indeed any type of CV correction. IMHO there will be a day when you will be able to use CV correction provide that the correction is of a type that can be worn in the cockpit at all times while flying and allows you to pass all vision tests. We are far from this point at this time and I doubt that it will be available in my career. A lot of work is being done in this arear though.