Under-Eye Filler Risks: What Can Go Wrong and When We Use PRF Instead

Under-eye filler can soften a hollow very nicely, but the area is less forgiving than the cheeks or lips. In this guide I explain each under eye filler risk, how often the problems show up in the research, which under-eyes are a poor match for filler, and when PRF is the better first step.

Why the under-eye is a harder area to fill

The under-eye has very little room for error. The skin there is the thinnest on the face, so product placed even slightly too shallow can show through. The lower eyelid also holds fluid easily, which is why so many people wake up puffy, and hyaluronic acid filler is a gel that draws in water. Put those together and you have an area where the right amount looks rested and a little too much looks swollen.

The regulatory picture reflects this. The FDA’s patient page on dermal fillers lists the periorbital area (around the eyes) among injection sites that are not approved for fillers in general, and says the risks of unapproved uses “are not known.” Two hyaluronic acid fillers now carry a specific approval for this area. Juvederm Volbella XC was approved for under-eye hollows in adults over 21 in February 2022, and Restylane Eyelight followed on May 8, 2023, after a clinical study of 333 participants, with results the FDA says may last up to 12 months. Any other filler placed under the eyes is used off-label. Off-label use is common and can be appropriate, but you should know which product your injector plans to use and whether it carries that approval.

What can go wrong with under-eye filler

Most under-eye filler problems are cosmetic and can be corrected, while a few are rare but serious. This table summarizes what the research reports for each.

Problem	What you see	What the research says	How it is treated
Tyndall effect	Blue-grey tint under the skin	Caused by filler placed too superficially	Hyaluronidase to dissolve it
Malar edema	A puffy band at the top of the cheek	Up to 11% of tear trough cases; can appear years later	Hyaluronidase, sometimes a different product later
Lumps	Small bumps you can feel or see	Delayed nodules in about 0.5% of hyaluronic acid filler treatments overall	Massage or hyaluronidase; medical review if delayed
Bruising	A purple or yellow mark	Uncommon with a cannula in a small 2020 study	Fades on its own
Blocked blood vessel	Pain, pale or mottled skin, any change in vision	Rare, and an emergency	Hyaluronidase straight away; urgent eye care for vision symptoms

The Tyndall effect

The Tyndall effect is the bluish tint you sometimes notice under the eyes of someone who has had filler. The American Academy of Ophthalmology’s EyeWiki review of filler complications explains that when “too much HA is placed too superficially, a blue-grey discoloration can occur even without lumps.” Softer, less viscous products are less likely to cause it. It is not dangerous, and it usually responds to hyaluronidase, the enzyme that dissolves hyaluronic acid filler.

Swelling that does not settle

The same review reports that filler along the tear trough “can cause malar edema in up to 11% of cases,” and that some patients first notice it years after treatment. Malar edema looks like a soft, puffy band along the top of the cheek, often worse in the morning. It deserves the most attention when planning under-eye filler, because it can make a tired look worse. The review names limiting the volume, choosing the right filler and placing it deep as the main ways to prevent it.

Blood vessel complications

The most serious filler risk anywhere on the face is injection into a blood vessel. The FDA states that this can block blood supply and lead to tissue damage, vision problems including blindness, and stroke. These events are rare, and the under-eye is not the most common site. A 2024 review in Aesthetic Surgery Journal by Doyon, Beleznay and colleagues collected 365 new cases of blindness after filler reported between 2018 and 2023. The nose accounted for 40.6 percent of injection sites, the forehead 27.7 percent and the area between the brows 19.0 percent, while the region around the eyes accounted for 2.0 percent. That is reassuring, but it is not zero, so the same precautions apply in every area.

Who is usually a poor match for under-eye filler

Filler treats hollows, and it does not fix every kind of under-eye darkness. Before recommending it, the first step is to work out what is causing the shadow. In these situations I suggest something else first:

• Puffy bagsBags are usually fat that has pushed forward, plus fluid. Filler beside a bag can make the whole area look fuller rather than smoother.
• Puffiness that comes and goesIf your under-eyes swell after salty food, short sleep or allergies, the area already holds fluid, and hyaluronic acid draws in more water.
• Brown or purple color without a hollowPigment, or veins showing through thin skin, is a color problem rather than a volume problem. Filler cannot lighten it, and filler placed shallow can add a blue tint.
• Crepey, finely lined skinThis is a skin-quality issue. I cover it in my guide to lines under the eyes.
• Swelling after previous under-eye fillerIf filler has caused swelling before, I recommend dissolving it and rethinking the plan rather than adding more.

How to reduce the risk when filler is the right choice

When filler is the right tool, most of the safety comes from technique and restraint. As a national clinical trainer for Galderma and Prollenium, I teach facial anatomy and injection technique to other clinicians. These are the precautions to expect, and to ask about, with any injector:

1. Product choice. A soft hyaluronic acid filler suited to thin skin is the usual choice. Ask which product will be used and whether it is FDA-approved for under-eye hollows or used off-label; off-label use is explained before treatment.
2. A blunt cannula. Ask whether a blunt-tipped cannula will be used rather than a sharp needle. In a 2020 study in Plastic and Reconstructive Surgery Global Open, Diwan and colleagues treated 48 tear troughs in 24 patients with a cannula, placing filler deep on the bone. They reported no vascular occlusions; mild swelling was the most common side effect, and two of the 24 patients still had some swelling at four weeks.
3. Deep placement, small amounts. The usual approach is to place filler deep, close to the bone, in small amounts. It is easy to add a little more at a review and much harder to take away too much.
4. Hyaluronidase in the room. The EyeWiki review recommends having the enzyme that dissolves filler on hand at every filler appointment, so it is a fair question to ask.
5. A review once swelling settles. The result is best judged after the early swelling has gone, when any adjustment can be planned. Ask us at your consultation how the review is arranged.

When PRF makes more sense

PRF (platelet-rich fibrin) is a better first step when the main problem is skin quality rather than a deep hollow. It is made from your own blood, so there is no foreign material, and it works on the skin itself rather than adding a defined volume. A 2025 systematic review of 14 studies in the Journal of Cosmetic Dermatology (Sollitto and colleagues) concluded that “PRF shows promise in improving periorbital texture and fine lines,” with side effects mostly limited to short-lived swelling, redness and bruising.

The same review is clear about the limits. The evidence is low to moderate in quality, improvements often fade by six months, and the filling of hollows seen right after a PRF injection most likely reflects swelling. So I don’t describe PRF as a replacement for filler in a deep hollow. I recommend it first when the skin is thin, crepey or dark, when there is a history of puffiness, or when a patient simply prefers to avoid filler in this area. At KORA we offer liquid PRF injections and PRF EZ Gel, and I compare filler and PRF EZ Gel side by side in my guide to under-eye fixes.

Under-eye filler and PRF cost at KORA

Prices come from our current price list. Your plan and total are confirmed at a complimentary consultation before anything begins.

Learn more about dermal fillers and filler dissolving at our clinic on the Scottsdale and Paradise Valley border. If your concern is lines rather than hollows, start with my guide to lines under the eyes.