Four problems wearing one name
“Dark circles” is a description, not a diagnosis. Under the term live four different mechanisms: (1) shadow — a bulging fat bag or a hollow tear trough casting darkness under overhead light; (2) pigment — genuine melanin in the skin, common in darker skin tones and often familial; (3) vessels — blue-purple show-through where thin lower-lid skin reveals the vascular network beneath; (4) skin quality — crepey, thin or sun-damaged skin that reads dark at any angle. Most people carry a blend. Surgery speaks fluently to exactly one of the four — which is why the promise “blepharoplasty erases dark circles” is the region's most reliably oversold sentence.
The two-minute self-sort
The stretch test: in a mirror, gently pull the under-eye skin down and slightly out. Darkness fades → contour/shadow (a bag above, a trough below, or both). Darkness persists → pigment or vessels — press lightly: vessels blanch briefly, pigment doesn't. The lighting test: circles that appear under ceiling light and vanish with a ring light are shadow; colour that survives every light is colour. The morning test: worse after salty food or short sleep points to fluid-swollen bags (shadow family). Photos in flat and overhead light do this sorting reliably at assessment.
What each type honestly needs
Shadow from bags: the blepharoplasty case — transconjunctival repositioning or conservative removal of the herniated fat flattens the bulge, and the shadow it cast leaves with it. The bags page covers the mechanics. Hollow tear troughs: volume, not subtraction — filler or fat grafting; surgery that removes more from a hollow deepens the shadow. Pigment: SPF religiously, brightening/retinoid skincare, careful laser or peels — managed, rarely erased, and untouched by any scalpel. Vessels/thin skin: skin-quality work (resurfacing, sometimes a whisper of filler as an optical blanket); again, nothing to excise.
The honest consultation standard
You should hear your type named before any treatment is proposed — “yours is mostly shadow from bags with some pigment that surgery won't change” is what an honest read sounds like, expectations included. Post-surgical patients with pigment-type circles who were promised total erasure fill the disappointment threads; the operation did its job, the promise didn't. This practice's rule: the expectations conversation covers what remains after surgery as explicitly as what improves — because your mirror will.
Your eyes, honestly assessed
Send relaxed, straight-ahead photos (and one of your biggest smile) via the free assessment — the reply sorts skin from ptosis from brow, names what surgery would and wouldn't change for you, and respects "not yet" as an answer.