There is no such thing as risk free cosmetic surgery.
Every cosmetic procedure including the “non-surgical” injectables have risk. Soft tissue death and blindness are well documented complications of soft tissue filler injections.
Beware of the training of your injector. Do your homework. Some injectors are well trained and know how to minimise risk, others simply don’t.
Skype consultations are not in the best interest of the patient. They do not allow a full explanation of risk or nuance of the treatment required. The doctor is remote from the patient and is therefore unable to treat complications should they arise. Using Skype consultations in shopping centres to prescribe Botox and Fillers is simply designed to maximise profits and is not ethical complete patient care.
I am an expert in this field, both in the aetiology of the blindness and soft tissue necrosis. I am frequently asked to comment on the complications, because I care deeply about empowering patients with the right information.
If you want to dive deeper into the risks, you can read more in this journal article, one of many, I have published on the issue.