Retina reimbursement is going down for 2 reasons:
1. VEGF inhibitor injections are replacing much of the laser therapy that was done previously; lasers are the single most lucrative thing that retina specialists do. Injections do not pay nearly as well.
2. Reimbursement for vitreo-retinal surgery has been going down a lot in the past few years. Currently, you will make more per hour doing cataract surgery (which isn't that great) than you will doing VR surgery, by quite a ways. It's gotten to the point where many retina specialists have stopped operating and are doing medical only. Many others are considering it.
With that said, reimbursement in retina is still (for now) pretty good compared to most medical and surgical fields.
It's really a shame because we need good retina surgeons--the surgeries are very difficult and not just anybody can do them. I have seen some really sad botched ones, and it's scary. We can talk about altruism all day, but the fact is that when the reimbursement goes up or down in any medical field, it consequently becomes more or less competitive, and attracts or repels the good candidates.