I'm 16 yrs old and one of my top eyelid is wrinkly. What treatment would you recommend? (photos)

You have very attractive eyelids with very slight asymmetry in the creases.  The creases are created by the attachment of the skin to the upper margin of the tarsal plate (cartilage).  This can be changed surgically but I would not recommend it to you.  Laser can be used to tighten eyelid skin but again this is not appropriate at your age.  The white dots you see are glands in the skin and are completely normal.  They are more visible in pale, thin skin.  Excellent skin care as suggested by another respondent is the best care you should do.

It is completely normal to have some creasing of the skin of the eyelids especially the upper lids and in some people the lower. Some will even have this at a young age like you and most people will have asymmetry from one side of the face to the other.  Because you are so young and it's fairly normal I wouldn't suggest doing much at this time other than good skin care (moisturizer, eye cream, sun protection, and oral water intake).  You can consider seeing a dermatologist and or aesthetician for non-surgical options to improve the appearance of your skin.

Your concern is understandable because the eyes are so important to appearance. While the other doctors have been most
respectful and kind in their comments, I presume these would not have satisfied you if you want the situation to be
permanently corrected. I presume you would feel relieved only if the left
lid matches the appearance of the other lid.

Unfortunately, the only way to achieve this
requires surgery. The reason is that the difference between the 2 sides is to
do with the internal anatomy of the left upper lid. This internal anatomical
adjustment is performed after precise measurements, to match the other side and
then a form of internal tarsal fixation technique would be used.

Until your eyes are examined more
closely in person, it is not possible to answer the question whether the good
eye may also require some surgery to ensure the result is as close to
symmetrical as possible?

The next question is at what age
should this be performed? While I realize you may want to do this as soon as
possible, it would be preferable to wait until you are a responsible adult, age
18. Regarding expectations, while a major improvement of the left lid would be expected, to obtain exact symmetry cannot be guaranteed. There is the possibility that a
revision of the surgery for adjustment, may be required to improve symmetry, up
to a year after the surgery.