Tear Trough Filler: A Nurse's Honest Guide to Under Eye Treatment

Tired looking eyes are one of the most common concerns clients bring to me. People tell me they sleep well, they feel well, and yet they look exhausted in photographs. Often what they are seeing is the tear trough, the hollow that runs between the lower eyelid and the cheek. As a Division 1 nurse with over 20 years in the industry, tear trough treatment is one of the areas I am most careful with, because it is both one of the most rewarding treatments and one of the easiest to get wrong. Here is what tear trough filler actually involves, who it suits, and just as importantly, who it does not.
What Is the Tear Trough?
The tear trough is an anatomical groove running diagonally from the inner corner of the eye down towards the cheek. It exists because of how the tissue is anchored to the bone underneath. Some people have a visible tear trough from a young age simply because of their facial structure, while for others it deepens over time.
Several changes contribute to that deepening. The fat pads in the midface descend and lose volume, the skin under the eye thins and loses collagen, and the bone itself remodels with age. The result is a hollow that casts a shadow, which is why the area can look dark even when there is no pigmentation present.
What Is Tear Trough Filler?
Tear trough filler, sometimes called under eye filler or tear trough dermal filler, is a treatment that restores volume in that hollow to soften the shadowing and create a smoother transition between the lower eyelid and the cheek.
The product used is typically a soft, low density hyaluronic acid gel, chosen specifically because the skin here is the thinnest on the face, around half a millimetre in places. Placement matters enormously. Product is generally placed deep, close to the bone, rather than superficially, because superficial placement in this area is what produces lumps, puffiness and the bluish tinge known as the Tyndall effect.
This is not a treatment where more is better. The goal is a subtle correction that makes you look rested, not a face that looks treated.
Are Dark Circles the Same as Tear Troughs?
This distinction matters more than almost anything else in this article, because it determines whether treatment will help you at all.
Dark circles have several different causes. Shadowing from a hollow tear trough responds well to volume. Pigmentation, whether genetic, post inflammatory or sun related, does not respond to filler at all, because there is no hollow to fill. Visible blood vessels showing through thin skin also will not improve with volume, and in some cases can look worse. Crepey, dehydrated skin texture is a skin quality issue rather than a volume issue.
A simple test I use with clients: look in a mirror with light coming from above, then tilt your head back. If the darkness lightens noticeably when you tilt, it is likely shadowing from a hollow and volume may help. If it stays exactly the same, it is more likely pigmentation or vascular, and a different approach will serve you better.
Who Is a Good Candidate for Tear Trough Treatment?
In my assessment, good candidates generally have a clearly defined hollow with good skin quality, minimal puffiness or fluid retention, and realistic expectations about what a subtle correction can achieve.
Tear trough filler is usually not the right treatment for people with significant under eye puffiness or fat prolapse, existing fluid retention or a tendency to wake up swollen, very thin or crepey skin where product may show through, active skin conditions in the area, or darkness caused primarily by pigmentation. In these cases treatment can make the area look worse rather than better, and part of my job is telling people that honestly before anything is done.
Where skin quality rather than volume is the issue, treatments like Rejuran or skin boosters are often the better starting point, because they improve the thickness and resilience of the skin itself rather than adding volume beneath it.
What Happens During Treatment
At my Fairfield clinic, a tear trough correction appointment runs for approximately one hour. Most of that time is assessment and discussion rather than the treatment itself, which is deliberate.
The appointment begins with a full facial assessment, not just of the under eye area but of the midface, because in many faces the tear trough looks deeper than it is due to volume loss in the cheek. Supporting the midface sometimes produces a better result than treating the hollow directly.
Numbing is applied for comfort, treatment is performed conservatively, and aftercare is explained before you leave. I would always rather undertreat and review than overfill and have to reverse.
How Long Does Tear Trough Filler Last?
This is one of the most common questions I am asked, and the honest answer is that it varies more here than in most areas of the face.
Because the under eye area has relatively little muscle movement compared with the lips or around the mouth, product can last considerably longer here, sometimes 12 to 18 months or more. That longevity is generally a positive, but it also means poor placement lasts a long time too, which is another reason to be conservative.
Results settle over about two weeks as any initial swelling resolves. I always review before considering whether anything further is needed.
What Can Go Wrong With Tear Trough Filler?
I think it is more useful for you to read this honestly than to read a page that pretends the treatment is risk free.
The most common issues are overfilling, which creates a puffy or heavy look under the eye, and superficial placement, which can produce visible lumps or a bluish grey discolouration through the thin skin. Prolonged swelling is also more common in this area than elsewhere, particularly in people prone to fluid retention, because the tissue here holds water readily.
Bruising is common and usually settles within a week or two. More serious complications, including vascular events, are rare but possible in any injectable treatment, which is why practitioner experience and anatomical knowledge matter far more than price when choosing where to have this done.
Hyaluronic acid based products can generally be dissolved if a result is not right, which is one reason they are preferred in this area, but needing to dissolve is not a good outcome and is best avoided by careful assessment in the first place.
Why Do Celebrity Results Look Different?
Clients often show me photographs of celebrities with flawless under eyes and ask for the same. It is worth knowing that what you are seeing is usually a combination of professional lighting, makeup, retouching, and often several treatments over years rather than one appointment. Some of it is not filler at all, but skin quality work, surgical intervention, or simply good genetics and good photography.
Realistic reference points matter. Looking at genuine before and after results from actual clients gives you a far more useful sense of what is achievable than a magazine cover does.
Alternatives Worth Considering
Not everyone who books a tear trough consultation leaves with a tear trough treatment, and that is a good thing.
Where the concern is skin thinness and crepiness, polynucleotide treatments such as Rejuran strengthen and repair the skin in the area. Where hydration and surface texture are the issue, skin boosters or the Glass Skin Facial improve skin quality without adding volume. Where collagen and texture need rebuilding, microneedling with infusion can help. And where fine lines around the eyes are movement related rather than volume related, wrinkle reduction treatment addresses the actual cause.
For some people, the right answer is a combination. For others, it is better sleep, sun protection and patience.
How to Choose a Practitioner
If you take one thing from this article, let it be this. The tear trough is an advanced treatment area, sitting close to important vascular structures, with skin thin enough to show every millimetre of imprecision.
Ask who is performing the treatment and what their qualifications are. Ask how often they treat this specific area. Ask what happens if you are not happy with the result. A practitioner who is willing to tell you that you are not a suitable candidate is showing you good judgement, not turning away business.
Booking a Tear Trough Consultation in Melbourne
ReflectorN is located within Fairfield Wellness at 145C Station St, Fairfield, seeing clients from Northcote, Alphington, Ivanhoe, Clifton Hill, Preston, Brunswick and Kew.
Every consultation begins with an honest assessment of whether this treatment suits your anatomy and your goals. In line with AHPRA and TGA regulations, pricing is discussed at consultation rather than advertised online, and you will never be pressured to proceed on the day.
If you would like to know whether tear trough treatment is right for you, book a consultation and we can work through it together.




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