Sunken Eyes: Causes, Treatments, and How to Fix Them

Key Takeaways:

Sunken eyes are hollows in the tear trough caused by lost volume rather than tiredness, which is why they do not fade after a good night of sleep. Aging, genetics, hydration and allergies tend to build up over the years to create the look, and pigment treatments will not close a structural dip. Mild cases respond to lifestyle changes and skincare, while deeper hollows usually need clinic treatments such as filler, PRP or skin firming to address the underlying cause.

Sunken eyes are often rarely about fatigue; the look persists regardless of how rested you appear because it stems from a loss of volume in the tear trough, the area situated between the lower eyelid and the cheek. The issues usually stem from many small things adding up, and the right fix requires finding the root of the damage.

What Are Sunken Eyes and How They Form

A sunken eye is a hollow or dip in the tear trough, the band of skin running from the inner corner of the eye along the lower orbital rim. When this area loses the soft tissue that supports it, the skin sits closer to the bone underneath and a visible groove forms. Enophthalmos, a medical term, describes the eyeball sinking deeper into its socket due to trauma or specific illnesses; therefore, this condition should be considered before attributing the cause solely to cosmetic factors.

It also helps to separate three things that often get confused:

• Sunken eyes are about lost volume and a hollow shape.
• Dark circles are about color, from pigment, vessels or thin skin showing through.
• Eye bags are about puffiness, where fat or fluid pushes forward.

A deep tear trough often casts its own shadow, which then reads as a dark circle, so the two often appear together. The fix is not the same. Volume problems need volume solutions.

What Do Sunken Eyes Look Like in the Mirror

Most people notice the same signs. A faint groove running below the lash line. A shadow that does not lift no matter how much concealer goes on. Thinner, slightly papery skin. A worn-out look that does not match how well rested you actually are. In more advanced cases, the cheek looks flatter and the bony edge of the eye socket starts to show through the skin. Overhead lighting and front-on flash exaggerate the effect, which is why sunken under-eyes are usually noticed first in photos rather than in the mirror.

What Causes Sunken Eyes to Develop

Sunken eyes rarely come down to a single trigger. The contributing factors usually stack on top of each other over the years:

• Aging. Slow loss of collagen, elastin and the fat pads that cushion the under-eye area, with the surrounding bone also reshaping over time.
• Genetics and face shape. Deep-set eyes, naturally thin skin and inherited bone structure can leave hollows visible even in people in their twenties.
• Daily habits. Short sleep, stress, smoking and heavy alcohol use speed up collagen loss and deepen shadows.
• Hydration and nutrition. Inadequate water intake, rapid weight loss and a low-protein diet can thin the skin and reduce the cushioning fat under the eye.
• Allergies and rubbing. Hay fever, sinus issues and rubbing tired eyes strain the delicate tissue and can darken the area over time.

One safety note. Sudden hollowing, hollowing on one side only, ongoing pain or any change in vision is not a cosmetic issue and needs a medical assessment.

How to Fix Sunken Eyes at Home

When hollowing is mild and recent, lifestyle changes and topical care can reduce the visible shadow over a few weeks of consistent use:

• Hydration and nutrition. Adequate water intake and a diet with sufficient protein and antioxidants such as vitamins C and E support skin structure.
• Sleep. A consistent sleep schedule of seven to eight hours nightly reduces the fluid buildup and dullness that exaggerate hollows.
• Topical products. Eye creams containing hyaluronic acid, peptides and caffeine can hydrate the skin and temporarily reduce puffiness around the area.
• Cool compresses. Brief application morning and evening can reduce puffiness and visible redness around the eye, which helps the area look fresher.
• Color correction. Correctors in peach or salmon tones neutralize the bluish shadow more effectively than beige concealer alone.

These steps work when the hollowing is driven by short-term factors such as fatigue, allergies or minor weight changes. They cannot rebuild volume that has been lost to aging or genetics, and when the hollow is structural, topical care alone will not close it.

How to Get Rid of Sunken Eyes in Clinic

Clinic treatments can restore the tissue under the eye, something skincare can’t do for deeper or structural hollows. Board-certified dermatologists typically use three main approaches, with the best choice depending on whether the problem is a lack of volume, thin skin, or a combination of both.

• Tear trough filler. Hyaluronic acid placed under the eye replaces lost volume and softens the hollow. Among under-eye filler procedures in Bangkok, this is the most established option, with results showing immediately, lasting six to eighteen months and reversible with hyaluronidase if any adjustment is needed.
• PRP treatment. Platelet-rich plasma uses your own platelets to stimulate collagen and improve skin quality. It works best when the issue is thin, crepey skin, and often sits inside a broader skin rejuvenation plan.
• Skin firming. Laser, HIFU and Ultraformer thicken and tighten under-eye skin across a series of sessions, and pair well with filler when the skin is loose as well as hollow.

The under-eye area runs through a network of small blood vessels, so injector experience and product selection matter equally to the final result.

How to Get Rid of Sunken Eyes in Clinic

Tear trough hollowing is rarely one problem to solve. Lost volume, thin skin and loose tissue often appear together in varying degrees, which is why the most reliable results come from clinics that can match the treatment to the actual cause rather than the single tool they happen to have on hand.

Nirunda Clinic’s board-certified dermatologists possess over ten years of experience catering to both local and international patients for all types of under-eye treatments, such as fillers, PRP, HIFU, Ultraformer, and laser skin procedures. This broad approach ensures your treatment aligns with your facial requirements, not just the clinic’s specific expertise. US FDA-approved fillers like Juvederm or Restylane are utilized in every tear trough injection. Hyaluronidase is also available for reversing hyaluronic acid filler if adjustments are necessary.

Book a consultation for filler injection in Bangkok today. You will receive an in-person assessment of your under-eye structure, a treatment plan tailored to the specific cause of your hollows, and a clear breakdown of expected results, longevity and aftercare before any decision is made.

Frequently Asked Questions About Sunken Eyes

Q: Are sunken eyes permanent?

A: Not always. The appearance can fluctuate with short-term factors like poor sleep, low hydration or high salt intake, often softening within days once those are corrected. Hollows caused by aging, genetics or significant weight loss are structural and will not resolve on their own, though they can be visibly improved with the right clinic treatment.

Q: How long does under-eye filler last for tear trough hollows?

A: Hyaluronic acid filler placed in the tear trough typically lasts six to eighteen months. Duration depends on the product used, the volume placed, individual metabolism and how much expression the area receives. Most patients return for a top-up around the twelve-month mark to maintain results.

Q: Will losing weight make my eyes look more sunken?

A: Yes, it can. The under-eye area contains several small fat pads, and significant or rapid weight loss reduces their volume along with the rest of the face. Slower, gradual weight loss gives the skin and tissue time to adjust, but for some people the hollows remain visible afterward and respond best to filler.

Q: Is filler safe for the under-eye area?

A: It is safe when performed by an experienced, board-certified injector using a product designed for the tear trough. The under-eye runs through a network of small blood vessels, so injector technique and product choice both matter significantly. Sticking to a hyaluronic acid filler also means the result can be reversed with hyaluronidase if a complication arises.

References:

Recommendations for the Treatment of Tear Trough Deformity with Cross-Linked Hyaluronic Acid Filler. Retrieved on 8 June, 2026 from https://onlinelibrary.wiley.com/doi/10.1111/jocd.13475