Is this because of a lazy eye, or is it just asymmetry? (photos)

I do see some difference between the size of your left and right eyes.  In my experience it is best for this issue to see an oculoplastic surgeon and have a full examination.  There are different things that could be causing this difference.  So a comprehensive evaluation will be essential to a correct diagnosis and then the best treatment plan.

Thank you for your pictures. In my opinion you do not have ptosis of your eyelid (lazy eye). It appears that you may have some asymmetry of your orbits/ eye sockets. This is best evaluated in person and with potentially a CT scan. Additionally, even if you had asymmetry of your eye sockets the benefits of the surgery do not outweigh the risks.  Best wishes.

Dear Divina Thank you for sharing your concerns.  I do see you eyelids asymmetry. From the pictures, it is hard to tell exactly without examining you.It could be a normal asymmetry, however it can be other things as well. Example, you can have a left upper eyelid ptosis. The other things we need to rule out if whether your right eye is more bulging forward when compared to your left. if that is the case, then you need a CT scan of the orbits. I advice you to seek the opinion of your doctor.Good luck