3 months post op - 500cc teardrop, uneven and odd looking.

I suggest you consult with your plastic surgeon in person to better learn more about this situations and possible correction methods. Matters such as sagging or drooping  and size change will not improve with time. If you decide on a revision, it's best to wait 6 to 12 months depending on the reason for #revision. I highly suggest you consult with a board certified plastic surgeon in person to better learn your options. Matters such as sagging or drooping  and size change will not improve with time. As with all cosmetic surgery, results will be rewarding if expectations are realistic.

You may have bilateral capsular contracture, anyhow I think you'd be happier with implants of wider base and better located centric from the nipples. Better set of photos may help to determine if there is any implant rotation. Seems you'll need a revisional procedure.

Without knowing what your pre-existing anatomy was and seeing you personally, online consultants can only speculate. However, the most common cause of the type of asymmetry I see in the pictures is implant rotation. If teardrop (gummy bear, form-stable, shaped) implants do not get held in place by an adherent capsule, rotation can occur. your plastic surgeon can advise you on this after seeing you.

I see the asymmetry but I don't know the cause. It would help to also have a profile and an oblique photograph, as well as photos before you ever had your first surgery and how you looked again before this surgery.You have the sort of problem that has to be evaluated in-person with a plastic surgeon, but just for interest's sake, this is what I see:-right is emptier on top-left has more upper inner fullness-left nipple is tipped  bit down and out-nipple to bottom of breast distances seem the same-left looks larger-neither teardrop implant appears rotated-neither implant is too high, low, to the center, or sidewaysMy guess is that what you are seeing is due to asymmetry in your tissue. You may have had this before you ever had surgery, it could have been caused by the dissection of your first surgery, or it could have happened as a result of the implant being in your body for a number of years.  It also can be a combination of these.  But you can't find a cause and a solution until you look into it methodically.Get your original preop photos; your early post photos; your photos before this surgery, and then more recent photos after this surgery.  Repost and someone will figure it out.Although not perfectly equal, they are very beautiful - and that's what matters the most.

Shaped implants are not very forgiving. They tend to feel firmer than round implants as the material itself  is firmer. They also show asymmetry a lot more easily, as any difference in the level of placement,  or rotation of the implant leads to visible differences. If you are not happy with the shape, talk to your doctor. It sounds like you were very happy with your round implants, so you could always go back to round. It is best that  you be examined in-person for any final recommendations.   Best wishes. Below is a woman who went larger with round implants after many years of a smaller implant. 

Teardrop implants can be tricky.  Sometimes they rotate out of ideal position.  This is a possible explanation of your current situation, but other possibilities exist.  It is best for you to ask your plastic surgeon his or her opinion as to a likely cause and treatment.