What is the Tyndall effect under the eyes?
Some people notice a blue or gray tint under the eye after filler and wonder whether it will fade or stay. One named cause is the Tyndall effect.
The Tyndall effect in plain terms
The National Library of Medicine (PMC) hosts a review that advises: "Avoid superficial injections to prevent the Tyndall effect, a bluish discoloration under the skin that may arise when the HA is injected too superficially." The cause that source names is placement. The filler sits too shallow, and the color change follows.
The same review adds: "It occurs when particulate HA fillers are inappropriately implanted into the superficial dermis or epidermis. Hyaluronidase should be the initial approach to treatment." So the first fix it points to is hyaluronidase, which a provider has to be prepared to use.
What to ask before filler goes under your eyes
- How deep do you place filler in this area, and why that depth?
- Have you seen a bluish tint in your own patients, and what did you do about it?
- Do you carry hyaluronidase in the office?
Depth is the lever here, so a provider who can explain it is giving you useful information.
Further reading on fillers
For a general overview, see the American Society of Plastic Surgeons on dermal fillers. The U.S. Food and Drug Administration covers soft tissue fillers and offers dos and don'ts for wrinkles, lips and more. For the eye area specifically, there is a PMC report on real-world use of a hyaluronic acid-based filler in the periorbital region.
If you already see a tint
Take a clear photo in daylight and contact the provider who treated you. A tint is a reason to ask questions early, not to wait and hope.