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

Thank you for the question and for sharing your photo.Your right eyelid is ptotic, but your left is slightly low too. If you have surgery on the right upper lid, which is possible, then your left might drop as well. This can be lifted too if needed. See an oculoplastic surgeon in office for in...

It would be good to see a picture before contact lens use.  In some people who use contact lens for many years the lids may droop.  Unusual after only 11 years, but possible.  Especially if you were a little low to begin.  The astigmatism was probably always there and is...

If you only had one eye operated on, and the other one is now falling, that is an example of Herring's Law.  If this stays this way, which it may if it has already been several weeks, you may want to now lift the other eyelid.   

The answer depends if the droopiness is causing problems right now (either blocking vision or causing head to move back).  You have to see a pediatric ophthalmologist along with an oculoplastic specialist. If it is not causing problem, then best to wait until teenage years.

The swelling should not affect the final outcome.  However in the short term it may actually make the lid look lower since the weight of the swelling can pull the lid down.  If it was even post-op it would be unusual for it to fall at 3 weeks, but it can.  If still swollen give it...