Well, if you are not bothered with much-loosened skin you are having on your eyelids now then you can wait for next year if you want. There is no correct or any limited age for obtaining eyelid surgery. Having excess skin in the upper eyelid or bulging fat in the lower lids are the most commonly seen with signs of aging.
However, sometimes the exact age depends on your heredity. When women cross the age of forty and fifty, it comprises the majority of patients. If you are good in health without any serious eye problem then your age should not keep you from having any eyelid surgery.