What would be the best technique to correct uneven brows and get rid of my glabellar lines?

Glabellar lines are caused by activity of the underlying muscles and are best treated with Botox. You can also use Botox to even out your eyebrow, but of course this is temporary. Botox can be used to lower the left brow and to give a slight lift the the right brow improving the symmetry. An endoscopic brow lift can also be effective at improving the brow asymmetry. This could be done either on the right brow only or on both sides with a greater lift to the right side. Consulting with a physician experienced in both Botox for the glabella and forehead should be your first visit. If Botox does not give you the results you desire consulting with a surgeon experienced in endoscopic brow lifts would be you next visit.