FSX Laser or VF Lift for droopy eyelids:
skin, brow, or the lifting muscle?

Three causes that look the same in the mirror

A hooded upper eyelid can come from three places. The skin of the lid can lose its elasticity and fold over the lash line (dermatochalasis). The brow can descend with age and push the lid skin down from above, so the fold is really a brow problem. Or the lid margin itself can sit low over the iris because the muscle that lifts it has weakened (ptosis). The first two are treated non-surgically in Dr Sin Yong’s practice; the third is a surgical question, and the examination is designed to sort them before anything is switched on.

FSX Laser: when the skin is the problem

FSX Laser is Dr Sin Yong’s protocol for skin that has lost its snap: fine crepey texture, enlarged pores and the slight excess that folds over the lash line when the brow is in a good position. It works on the skin surface and the upper dermis, so any change in how open the eye looks comes from the skin, not from lifting. It is the choice when a gentle brow lift with a fingertip in the mirror changes very little, but pinching the lid skin shows obvious laxity. Full page: FSX Laser.

VF Lift: when the brow is the problem

VF Lift – Vertical Facelift uses monopolar radiofrequency on the CLASSYS Volnewmer platform, applied along vertical vectors so that the tissue is encouraged to sit higher rather than simply tighter. For the eye, the relevant zones are the forehead and lateral brow. The US FDA clearance for Volnewmer covers electrocoagulation and haemostasis of soft tissue (K240248); in a randomised split-face trial in 22 Asian women the two monopolar platforms gave comparable lifting, with less pain reported on Volnewmer in that trial (Roh, Ann Dermatol 2025). It is chosen when lifting the brow with a fingertip visibly opens the eye, which tells Dr Sin Yong that the fold is coming from above. Full page: VF Lift – Vertical Facelift.

When both are used, and in which order

After 45 the two usually coexist. Dr Sin Yong lifts first and resurfaces second: VF Lift is directed at the brow position, which is intended to reduce the fold, and FSX then treats the skin that remains. Doing it the other way round means treating skin that is about to move. The interval between the two depends on how the skin responds to the first step.

When neither is right

If the lid edge crosses the iris noticeably lower on one side, or the eye looks sleepy even with the brow lifted, the problem is the levator muscle and no energy device will fix it. Dr Sin Yong screens for ptosis at every eyelid assessment and refers to an oculoplastic surgeon rather than treating around it. Marked skin excess that sits on the lashes is also usually a surgical blepharoplasty question. See droopy eyelids treatment and non-surgical eyelid lift.

Risks and what to expect

FSX Laser: temporary redness, swelling and flaking; post-inflammatory hyperpigmentation is the main risk in Fitzpatrick III–V skin, which is why settings are tested and sun avoidance is strict. VF Lift: transient redness and tenderness; rare risks include small burns or surface irregularity, reduced by the water-cooled tip and by treating the thin skin near the orbit conservatively. Neither is performed over the eye itself; protective eye shields are used for the laser.

Fee factors

Whether one or both protocols are planned, the area treated, and the number of sessions the examination suggests. Singapore’s healthcare advertising rules do not allow prices to be published; the fee is set out in writing after assessment. How fees are quoted.