Sagging, Uneven Breasts After Weight Loss - Surgical Options?

First, congratulations on your weight loss.  Also thanks for sending in photos.  It appears, (without a proper exam), that you would be a good candidate for a breast augmentation, (to achieve upper pole fullness), and a lift.  Please seek out a board certified plastic surgeon.

Thank you for the question and picture.

 I think you will benefit from  breast augmentation and mastopexy surgery.There are a variety of different mastopexy procedures that are available depending on the patient's specific needs and goals. I would recommend consultation with well experienced board-certified plastic surgeons for direct examination. This consultation will allow you to get the best advice in your specific situation.

In order to achieve “more formless on top” breast implants will be helpful. It will bevery important to communicate your size goals with your surgeon.  In my practice, the use of photographs of “goal” pictures (and breasts that are too big or too small) is very helpful. I have found that the use of words such as “natural” or “C cup” or "fake looking" or "top heavy" means different things to different people and therefore prove unhelpful.
Also, as you know, cup size varies depending on who makes the bra; therefore, discussing desired cup  size may also be inaccurate.
I use  intraoperative sizers and place the patient in the upright position to evaluate breast size. Use of these sizers also allow me to select the breast implant profile (low, moderate, moderate plus, high-profile) that would most likely achieve the patient's goals. The patient's goal pictures are hanging on the wall, and allow for direct comparison.
I have found that this system is very helpful in improving the chances of achieving the patient's goals as consistently as possible.
By the way, the most common regret after this operation, is “I wish I was bigger”.

You should also be aware that the  breast augmentation/ mastopexy procedure can be done in a single or 2 staged fashion.There are good plastic surgeons who will insist on doing the procedures separately and there are good plastic surgeons who can produce excellent outcomes in a single stage.

The combination breast augmentation / mastopexy surgery differs from breast augmentation surgery alone in that it carries increased risk compared to either breast augmentation or mastopexy surgery performed separately. Furthermore, the potential need for revisionary surgery is increase with breast augmentation / mastopexy surgery done at the same time.
I'sn my opinion, the decision  to do the operation in a single or two  staged fashion becomes a judgment call made by a surgeon after direct examination of the patient.  For me, if I see a patient who needs a great degree of lifting, who has lost a lot of skin elasticity, or  whose goal is a very large augmentation then I think it is best to do the procedures in 2 stages (in order to avoid serious complications). However, doing the procedure one stage does increase the risks of complications in general and the potential need for further surgery. This increased risk must be weighed against the practical benefits of a single stage procedure (which most patients would prefer).
Conversely, if I see a patient who requires minimal to moderate lifting along with a small to moderate size augmentation (and has good skin quality), then doing the procedure one stage is much safer. Nevertheless, the potential risks  are greater with a 1 stage  procedure and the patient does have a higher  likelihood of needing revisionary surgery.
I hope this helps.