Tear trough filler:
when the honest answer is no

When is tear trough filler the wrong answer?

Tear trough filler is the wrong answer whenever the shadow under the eye is not produced by a hollow along the bony rim of the eye socket. Filler is a soft hyaluronic acid gel placed on the bone to make the groove between lower lid and cheek shallower. It occupies space, so it can only help where space is genuinely missing.

Five findings argue against it: a true bag of herniated orbital fat, swelling of the cheek mounds (malar oedema or festoons), very thin and crepey skin, dark circles that are mostly pigment, and earlier filler that has not been identified or dissolved. Many people have more than one of these, which is why the same complaint, dark circles, can lead to filler for one person and to a quite different plan for the next.

Saying no is part of the treatment. Dr Sin Yong's assessment can end with a plan, a referral or advice that nothing needs to be done, and the written plan includes the option of no treatment.

Why does filler make a true eye bag look worse?

A true eye bag is a convexity, and filler is for concavities. Orbital fat that has pushed forward past a weakened septum forms a rounded bulge above the groove. Placing volume beside the bulge does not shrink it; it tends to blend bag and groove into one larger mound, and the lower lid looks heavier rather than smoother.

The two look alike in a photograph and differ on examination. With the head tilted back and the gaze upward, the shadow from a hollow softens as the light changes, while a bulge of fat stays or becomes more prominent. Gentle pressure on the closed upper eyelid pushes any prolapsed fat forward. Where the bulge is large enough to be seen all day from every angle, no injection or device removes fat from behind the septum, and the honest route is referral to a plastic surgery or oculoplastic specialist for lower eyelid surgery, which Dr Sin Yong does not perform.

Filler can sometimes camouflage a small bag by supporting the groove beneath it. That is a judgement made at examination, and it is made conservatively, because over a larger herniation the result is usually one bigger mound that holds water in thin skin.

“Filler helps one under-eye problem, worsens another, and does nothing for the third.”

Dr Sin YongOn deciding whether filler belongs in the under-eye

What are malar oedema and festoons, and why do they rule filler out?

Malar oedema and festoons are fluid held in the mounds over the cheekbone, below the ligament that tethers the lower eyelid, and hyaluronic acid placed near them can make the swelling worse. Hyaluronic acid is hydrophilic: it draws water into itself. Where the tissue nearby already drains poorly, a water-holding gel tends to deepen swelling that is then difficult to reverse.

They are easily confused with an eye bag, with a hollow and with ordinary morning puffiness. Fluid puffiness is often worse on waking or after salt, alcohol or poor sleep and eases through the day, while a bag looks much the same from morning to evening. Puffiness that fluctuates is understood before anything is injected. Puffiness that is new, one-sided, painful or red, or that comes with swelling elsewhere in the body, is checked medically first, because thyroid, kidney, allergic and other causes can present this way.

The same mechanism explains a common late complaint after under-eye filler: persistent puffiness in someone who retains fluid there. It is assessed rather than assumed, and where the filler is the cause it can be dissolved with hyaluronidase, although the cheek mounds can take longer to settle than other problems.

What about thin skin, pigment and earlier filler?

Very thin, crepey lower-lid skin is a poor canvas for filler. This skin is among the thinnest on the body, so gel placed even slightly too superficially scatters light and shows as a bluish tint, the Tyndall effect, and any surface irregularity shows. Filler beneath thin skin does not thicken it. Skin quality is a different problem with different treatments.

Pigment is the other common mismatch. If the darkness looks the same whatever the lighting, the colour is in the skin, and volume does nothing to melanin. Stretching pigmented skin over a fuller contour can even make it more noticeable, so a smoother under-eye that is still dark is the typical result of filler placed under a pigment problem.

Earlier filler is the third. Product placed years ago can still be present, sometimes in the wrong plane, and more filler placed over it is a common route to a puffy, over-corrected look. Where earlier treatment is suspected, ultrasound can show what remains, and dissolving it with hyaluronidase is often the first step before any new plan. That applies equally to filler given elsewhere or overseas; bring the product name and dates if you have them.

How does a doctor decide, step by step?

The decision is made by examination, not from a photograph or a message. The history comes first: what bothers you, how it varies through the day, allergies, eye problems, medicines such as blood thinners, and any earlier filler. Then the under-eye area is examined with the head tilted back and the gaze upward, the closed upper eyelid is pressed gently, the skin is stretched to see how the darkness behaves, and the bony rim is felt to judge how much tissue lies over it.

The cheek is assessed at the same visit, because a descended mid-face deepens the groove between lid and cheek, and in some faces the more logical place to add support is the cheek rather than the trough. Photographs may be taken for the medical record, not for advertising. You then receive a written plan that names the cause, the options including no treatment, and the fee, and you are not expected to decide on the day.

If filler is advised, a soft hyaluronic acid is placed deep on the bone, often with a cannula, in small amounts, and the result is judged at review rather than in the first days. If it is not advised, you leave knowing why.

What is offered instead, and what determines the fee?

What is offered instead depends on which cause is present, because the alternatives act on different tissues. For thin, crepey eyelid skin the options include skin boosters and polynucleotides, which are directed at skin quality and add no volume. A pigment-directed laser at conservative settings is directed at colour in the skin, with sun protection alongside. Energy-based and laser approaches are considered for lax lower-lid skin, and fluid puffiness is managed by finding what drives it. Dissolving earlier filler, covered under filler correction, is often the first step, and a true fat bag is referred on.

Most people have more than one cause, so a plan that names each component and treats it separately is more realistic than a single under-eye treatment. The pages on eye bag removal and the types of dark eye circles set out each route, while the tear trough filler page and the under eye filler guide describe the cases in which filler is the right tool.

The fee depends on what the examination finds: whether filler is advised at all, the amount of gel a true hollow needs, whether the cheek also needs support, whether earlier filler must first be assessed or dissolved, and whether a skin-quality or pigment treatment is combined. Singapore's rules for medical advertising prevent prices from being published, so a quote is given in writing after the examination, never before; how fees are quoted explains the format.

Who should wait, and when should you call?

Treatment is deferred in pregnancy and breastfeeding, and with an eye or eyelid infection, a stye, a cold sore or inflamed skin near the eyes. A known allergy to hyaluronic acid products or lidocaine, previous reactions to filler, autoimmune conditions, and a bleeding tendency or blood-thinning medicine are discussed before anything is planned. Suitability is decided at consultation.

Filler in this area carries real risks even when it is the right choice. Bruising and swelling are common, and a bluish tint, lumps, persistent puffiness or an over-corrected look can follow. Rarely, a blocked blood vessel can affect the skin and, through connected vessels, the eye. Skin that turns white, grey, dusky or mottled, pain that is getting worse, or any change in vision needs same-day assessment, and a change in vision means the nearest hospital emergency department. The complication care page explains whom to contact. Hyaluronic acid is the only class of filler used in this area because it can be dissolved.