Bruising after under eye Restylane injections
Unfortunately, bruising is a very common problem after Restylane injections under the eyes. I always discuss this with patients prior to injections and often recommend patients take a week off from work. For the vast majority of patients, bruising goes away between one and two weeks after the injections. Patients are happy with how good their eyelids look and feel the bruising was worthwhile.
There are definitely some patients where bruising can last longer than 2 weeks. In a very small number of patients (much less than 1 in 100) who have severe bruising after the procedure, pigment from the blood called hemosiderin can "stain" the skin and lead to skin darkness which can last as long as 6-12 months. This does resolve over time but progress can be very slow.
Dissolving the filler can cause additional bruising and will hot help with hemosiderin staining, so if you think the darkness is getting better over time, I would probably recommend waiting it out. Hopefully you will get the results you were looking for as the darkness subsides.
Bruising Under the Eyes
It looks like the injector hit a blood vessel like injecting your Restylane. Time should make the bruise go away. To help the bruising dissipate faster I suggest you take Arnica and you can have the V-Beam laser performed on the area.
There are multiple reasons for dark circles under the eyes. An expert can solve your problem!
Dark circles under the eyes can be caused by hollowness resulting in a dark shadow when in overhead light. Restylane can help this problem if properly applied. Wrinkles in the under-eye area concentrate normal pigment making it look darker. Laser resurfacing can help this problem. Some people have dark veins under their eyes. These veins can be removed with laser. Some people have post-inflammatory or ethnic hyper pigmentation of the lower eyelids. This can be treated with Q-Swtiched lasers. The bruising that you had from your Restylane treatment should go away. If the Restylane was placed to close to the skin, you may have a bluish hue being reflected from the light as it is absorbed and reflected back from the Restylane. Vitrace can be used to dissolve the Restylane and then you could have another treatment to place it at a deeper level next to the infraorbital bone. I am sure your problem can be fixed. You need to see someone who understands all of the issues and the solutions.