Under Eye Fillers
How Under Eye Fillers Restore Volume and Reduce Shadows
The tear trough is the groove that runs from the inner corner of your eye downward along your nose. As you age, fat pads in the midface shift downward and the bone around your eye socket loses volume. These changes create a hollow that casts a shadow, making you look tired even when you feel fine.
Genetics play a role too. Some people develop noticeable hollows in their 20s or 30s because of their bone structure or naturally thin under eye skin. Weight loss, dehydration, and lack of sleep can make existing hollows look deeper.
Under eye fillers treat the hollow itself by replacing lost volume. Your eye doctor injects hyaluronic acid (HA) gel into the tear trough area to smooth the groove and reduce the shadow underneath your eyes.
Hyaluronic acid is a substance your body produces naturally. It holds moisture and gives skin a plump, hydrated appearance. HA fillers use a synthetic version of this molecule, cross-linked into a gel that holds its shape after injection.
Your doctor places the gel deep against the orbital rim bone, creating a smooth cushion beneath the skin. The filler attracts and holds water molecules, adding volume where your face has lost it. Results appear right away because the gel fills the space as soon as it is injected.
HA fillers break down over time as your body metabolizes them. The duration depends on the product used, the injection location, and your individual metabolism. Most under eye fillers last about 12 to 18 months.
Good candidates have mild to moderate hollowing under the eyes with reasonable skin elasticity. According to PMC (2013), ideal patients have infraorbital hollowing without significant fat prolapse (bulging fat pads) or excess skin laxity. Your doctor checks these factors during your consultation.
Patients with bulging fat pads or sagging lower eyelid skin may get better results from blepharoplasty (eyelid surgery). Filler added over bulging fat can make puffiness worse rather than better.
- Mild to moderate tear trough hollowing responds best to filler
- Good skin tone helps the filler create a smooth, natural result
- Patients with festoons (heavy, swollen mounds on the cheek) may need different treatment
- Your doctor assesses whether your shadows come from volume loss, pigmentation, or both
The Under Eye Filler Procedure
Your doctor may ask you to stop certain medications and supplements before treatment. Blood thinners, aspirin, ibuprofen, fish oil, and vitamin E can increase bruising. Stop these at least one week before your appointment unless your doctor prescribed them for a medical condition.
Avoid alcohol for 24 hours before treatment. Come to your appointment with clean skin and no makeup around the eye area. Let your doctor know about any previous filler treatments, allergies, or medical conditions.
If you have a history of cold sores or skin infections near your eyes, tell your doctor. Treatment may need to be postponed or you may need antiviral medication beforehand.
The procedure takes about 15 to 30 minutes. Your doctor cleans the area and applies numbing cream or uses a filler that contains built-in lidocaine. You may feel pressure or a brief pinch, but most patients tolerate the procedure well.
Many injectors prefer a blunt cannula for under eye filler. The cannula enters through one small opening and slides beneath the skin, depositing filler along the tear trough. This technique causes less bruising and reduces the chance of piercing a blood vessel compared to a needle.
Your doctor injects small amounts at a time and checks your appearance between passes. This careful approach prevents overfilling and allows your doctor to build volume gradually for the most natural result.
You can see the improvement as soon as the injection is complete. Mild swelling may make the area look slightly overfilled for the first two to three days. This is normal and settles on its own.
Bruising is the most common side effect. The thin skin under your eyes shows bruises more than other facial areas. Most bruising clears within one to two weeks. According to the Galderma Phase 3 trial (2023), 87% of patients had no treatment-related adverse events.
- Results are visible right away, with the final result settling over one to two weeks
- Cold compresses can help reduce swelling in the first 24 hours
- Most patients return to normal activities the same day
- Makeup can cover bruising starting the next day
Avoid rubbing or pressing on the treated area for at least 24 hours. Skip heavy exercise, saunas, and hot baths for the first day because heat and increased blood flow can worsen swelling. Sleep with your head elevated on an extra pillow for a few nights.
Your doctor may schedule a follow-up appointment at two weeks. This visit lets your doctor check the results after swelling has resolved and make small adjustments if needed. Most patients do not need a touch-up after their first treatment.
Contact your doctor right away if you develop sudden vision changes, severe pain that gets worse over time, or skin that turns white or purple near the injection site. These rare symptoms require emergency evaluation.
Safety, Risks, and the Advantage of HA Fillers
HA fillers can be dissolved with hyaluronidase, an enzyme injection that breaks down hyaluronic acid within hours. This reversibility is the most important safety feature for filler near the eyes. If a complication occurs or you are unhappy with results, your doctor has a reliable way to remove the product.
Non-HA fillers cannot be reversed. Products made from calcium hydroxylapatite, poly-L-lactic acid, or polymethylmethacrylate have no antidote and carry higher risks of visible lumps under thin periocular skin. Experienced eye doctors use only HA-based fillers around the eyes.
The FDA approved two HA fillers for under eye use. According to AbbVie (2022), the first received approval in February 2022. According to Galderma (2023), the second followed in June 2023. These remain the only two FDA-approved options for this area.
Bruising, swelling, and mild tenderness at the injection site are the most frequent side effects. These resolve within one to two weeks without treatment. The Tyndall effect, a blue-gray tint caused by filler placed too close to the skin surface, can occur but your doctor can correct it.
Rare complications include vascular occlusion, where filler accidentally enters a blood vessel and blocks blood flow. This can damage nearby tissue and, in severe cases, threaten vision. Your doctor reduces this risk by using a cannula, injecting slowly, and watching for warning signs during the procedure.
- Bruising and swelling affect most patients but resolve within two weeks
- Overfilling can create a puffy, unnatural appearance
- Infection is rare but possible with any injection procedure
- Allergic reactions to HA fillers are uncommon since HA occurs naturally in your body
Call your doctor or go to an emergency room if you experience sudden vision loss, intense pain around the eye, or skin that turns white, blue, or purple after treatment. These symptoms may indicate a blood vessel blockage that needs immediate treatment.
Your doctor should have hyaluronidase available on site and a plan for managing vascular emergencies. According to the AAO (2020), practices offering periocular fillers should maintain emergency protocols and access to ophthalmology consultation.
Time matters with vascular complications. The sooner your doctor injects hyaluronidase, the better the chance of restoring blood flow and preventing permanent damage.
Practical Questions About Under Eye Filler Treatment
Most patients need one syringe total, split between both eyes. Patients with deeper hollows may need slightly more. Your doctor starts conservatively and can add more at a follow-up appointment. Using less product initially reduces the risk of overfilling, which is harder to fix than underfilling.
Wait at least 24 hours before applying makeup to the treated area. The injection sites need time to close and begin healing. After the first day, you can use clean makeup and brushes to cover any bruising. Avoid pressing or rubbing the area when applying or removing products.
The Tyndall effect happens when HA filler sits too close to the skin surface, creating a blue-gray discoloration visible through thin under eye skin. Your doctor can fix it by injecting a small amount of hyaluronidase to dissolve the superficial filler. Proper injection depth during the original treatment prevents this problem in most cases.
Both techniques work for under eye filler. Cannulas enter through a single point and glide under the skin, which may cause less bruising and reduce the risk of blood vessel injury. Needles give the injector more precision for targeted placement. Many experienced doctors prefer cannulas for the tear trough area because of the safety advantages.
Filler is a quick, non-surgical option with minimal downtime and reversible results. It works best for patients with volume loss causing hollow shadows. Surgery (lower blepharoplasty) addresses excess skin, bulging fat pads, and muscle laxity that filler cannot fix. Your eye doctor can help you decide which approach matches your anatomy and goals.
Results look natural when your doctor uses the right product, the right amount, and the right injection depth. Overfilling is the most common cause of unnatural-looking results. An experienced injector starts with a conservative amount and adds more at a follow-up visit if needed.
Talk to Your Eye Doctor About Under Eye Fillers
Your eye doctor can evaluate your tear trough hollows, determine whether filler is the right approach, and recommend the best product for your anatomy. Schedule a consultation to discuss your options and find out what results you can expect.