Is mild upper eyelid ptosis in young adults due to long term soft contact lense using reversible?

Long term contact lens use, particularly hard, has been shown to cause ptosis. There are a few surgical procedures that can be performed by an oculoplastic surgeon to correct your droopy eyelid. Good luck. 

It has been shown that long term contact lens wear can cause or expedite or worsen eyelid ptosis (droopy eyelid). Hard contact lens is worse than soft contact lens. The treatment is the same though: eyelid ptosis surgery. See an oculoplastic surgeon for evaluation as there could be other causes of ptosis as well.