Why do some doctors refuse to put any filler under anyone's eyes?

I do this procedure tons of times a day for years without complicatoins. I love voluma lately to this area but use belotero and silk more superfically.  I combine with lasers and microneedling/PRP to get even more results. Best, Dr. Emer.

1.Filler
under the eyes can result in swelling that never resolves. Also, there are several important anatomic
structures in that area that can be injured when fillers are placed there. Therefore, many doctors refuse to put any
filler in that area in anyone. If
there is any filler placed, I believe it should be done in extremely small
increments over several visits.

I use filler along the tear trough quite often. I will say that it requires a certain amount of expertise, because I have seen a number of patients from other practices with less than desirable results.

Who are "a lot of doctors"? is there a report you are referring to or is this just your personal experience? The doctors who are telling you that are not comfortable performing the treatment which is completely safe in experienced and competent hands.

You should ask those doctors who don't use fillers under the eyes because it is a common, accepted procedure that has been been carefully studied safely used for a long time by thousands of physicians.