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Open Eye · what the term is actually asking for

PEAK inner outer steps down both ways from the peak lashmatrix.org
The shape the definition describes — proportions only, no numbers.
Principle What the term means geometrically

Open eye is a name for a result rather than for a silhouette, which is why it is used loosely and why it is worth pinning down. What a client means when she asks for it is that her eye should look larger with her eyes open — not that she wants a particular outline.

Geometrically the family it belongs to is the same one as doll: the length is carried over the middle of the lid rather than at either corner. The difference between the two is how that height is distributed. A doll map concentrates it into a peak over the pupil and lets the eye round out. An open-eye map spreads the same height into a plateau across the middle third, so the aperture gains height over a wider span and the eye reads bigger rather than rounder.

That is a real distinction and it is the reason both names survive in the industry. It is also why this library files them together in the grid and apart here: the parameter family is one, the intent is two.

Length curve · one peak, gentle taper inner outer
The line the definition asks for, read as a curve.

Built against the principle, it looks like this

✗ WRONG plateau carried to the corner ✓ RIGHT plateau held to the middle third
Range The bands, not a single value
How wide the plateau runs
Roughly the middle third of the line. Narrower and it collapses into a doll peak; wider and the outer corner loses the drop that keeps the eye from reading heavy.
How much rise over the inner corner
From a shallow lift — a natural map with its middle flattened out — to about double the inner zone. The upper end is where the eye stops looking rested and starts looking startled, and where clients say the set looks like it is staring.
How the outer corner behaves
It comes down before the tip, and this is not optional. An open-eye map that keeps its height to the corner is a different effect wearing the same name.
Zone order · bar = relative length Z1 Z2 Z3 PEAK Z4 Z5 Z6 Z7 inner outer
The soft end of the band.
Zone order · bar = relative length Z1 Z2 Z3 PEAK Z4 Z5 Z6 Z7 inner outer
The strong end of the band — same definition, same name.

Same plateau, two amplitudes. The soft end is what a client means by 'I want to look more awake'; the strong end is what she means when she brings a photograph, and it is the end that needs a lash line strong enough to carry height across three zones rather than one.

Fit Which eyes it suits, which it breaks

Suits it as it comes

HoodedThe best use of the term. On a hooded lid the visible strip is the middle, so height placed exactly there is height she can actually see, and a plateau survives being partly covered where a single peak does not.
MonolidA flat lid gives the plateau somewhere to read against. Height spread across the middle creates the depth the anatomy does not supply, which a corner-weighted map cannot do here.
Deep-setWorks, with the ceiling the brow bone sets. A plateau uses the available height across a span instead of spending it all at one point that runs into shadow.

Suits it once the map is adjusted

DownturnedOnly with the outer third handled deliberately. The plateau opens the middle, but if the corner is left to follow the natural line the eye reads open and tired at once.
AlmondNothing needs correcting, so the choice is purely intent — this is the map for a client who wants size without the roundness a doll peak gives her.
Close-setPossible but restrained: the plateau has to sit slightly outward of true centre, or the height gathers toward the bridge and the eyes read closer together than they are.

Collapses on it — and why

RoundThe honest limit. A round eye is already tall at its middle; a plateau there adds to the one dimension that did not need it, and the result is a rounder eye, not a bigger one.
Protruding lidsHeight across the middle sits forward on an already forward lid. What reads as open on a flat lid reads as heavy here, and it shows worst in profile.
UpturnedThe lift is already there at the corner; adding a middle plateau fights it, and the line ends up with two competing high points.
Zones What changes zone by zone
Inner zonesKept short, and shorter than most technicians expect. The inner corner is what makes the plateau read as a plateau; lengthen it and the whole line flattens into one bar.
Middle zonesThe effect itself. All three sit at the same height, and holding them level is harder than building a peak — the eye notices a sag in a flat run faster than it notices a soft peak.
Outer zonesBrought down before the tip. This is the zone that decides whether the client says 'my eyes look bigger' or 'my eyes look tired', and it is the one most often left too long.
Zone order · bar = relative length Z1 Z2 Z3 PEAK Z4 Z5 Z6 Z7 inner outer
Build order, inner to outer — the zone that carries the effect is flagged.
Can a DIY cluster set approximate thisBetter than most, and the reason is the shape rather than the skill. A centre-weighted graduated cluster set is close to an open-eye map by construction, so a client can get a credible version of this at home for an evening. What she cannot do is hold the plateau off her outer corner: a strip ends where the strip ends, not where her lash line thins, and on an eye whose corner falls away that is exactly where the effect is won or lost. The middle is reproducible; the corner is not.
Open The definition is open

Any map that carries its height as a level run across the middle third, with a short inner corner and a corner brought down before the tip, is an open eye here — on whatever eye shape and in whatever technique. The name is not owned by a school and it is not owned by us. If your version satisfies the geometry and reads differently, send it; it belongs beside this one, not underneath it.

FAQ Common questions

Is open eye just another word for doll eye?

They are the same parameter family and they are not the same instruction. Both put the length over the middle. A doll map concentrates it into one peak over the pupil, which rounds the eye; an open-eye map spreads it into a level run across the middle third, which widens the aperture without rounding it. Ask a client which of those she is after — most cannot name it, but almost everyone can point at it.

Which eye shape does open eye help most?

Hooded, by a clear margin. The middle of the line is the part still visible when her eyes are open, so height placed there is height she actually gets. It is the one case where the effect and the anatomy are asking for the same thing.

Why does my open-eye set make the eye look heavy instead of bigger?

Almost always because the plateau ran too far out. Once the height reaches the outer corner the outline stops being an opening and becomes a band, and a band reads as weight. Bring the last two zones down and the same set reads open.

Can an open-eye map work on round eyes?

It can be built, and it will not do what she asked for. A round eye is already at its tallest in the middle, so adding a plateau there increases roundness rather than size. Length carried outward is the honest answer on that shape, even though the client asked for this one.

Open definition

Nothing above settles what the word means. It states the geometry the word usually points at — and any way of building that geometry has an equal claim to the name. The principle decides, not us, and not whoever taught you.

So if you build this differently and it holds, that is not a wrong version. Send it and it goes up beside this one, under your name, from your own account, removed the moment you want it gone. A definition with two accepted readings is a better definition than one with an owner.

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Other style names: fox eye lash map · cat eye lash map · wispy lash map