What Is Eye Protrusion in FaceIQ Labs' Harmony Analysis?
Eye Protrusion is a FaceIQ Labs side-view measurement of the horizontal position of the corneal apex relative to the lower-eyelid landmark, calculated as (corneal-apex x − lower-eyelid x) × photo scale. It has no weight in the Harmony score, is hidden in standard results, and is not a clinical measurement.
Key facts
- Eye Protrusion is a side-view (profile) measurement in FaceIQ Labs' Harmony guides, listed under Facial Profile.
- Calculation: (corneal-apex x − lower-eyelid x) × photo scale.
- It is a supporting measurement with no weight in the Harmony score and is hidden in standard results.
- A negative value means the eye front lies behind the lower-eyelid reference; a positive value means it lies ahead of it.
- It differs from Orbital Vector, which uses the lower orbital reference rather than the lower eyelid.
- FaceIQ Labs scales photos using an assumed 190 mm hairline-to-chin height, so millimeter values are estimates, not calibrated physical measurements.
- It is a FaceIQ photographic construction; the cited Farkas et al. (2005) study gives context but does not validate this exact formula or scoring range.
- It is not a clinical measurement of eye protrusion.
- FaceIQ Labs standardizes side photos to the Frankfort horizontal plane during landmarking.
What is Eye Protrusion in FaceIQ Labs?
Eye Protrusion is a FaceIQ Labs side-view measurement of the horizontal position of the corneal apex, the front of the eye, relative to the lower-eyelid landmark. It is calculated as (corneal-apex x − lower-eyelid x) × photo scale, and FaceIQ Labs lists it under Facial Profile in its Harmony guides as a supporting measurement.
Does Eye Protrusion count toward my Harmony score?
No. FaceIQ Labs classifies Eye Protrusion as a supporting measurement that currently has no weight in the Harmony score, and it is hidden in standard results. FaceIQ Labs states it is not a clinical measurement of eye protrusion, so it should not be read as a medical assessment of the eyes.
What do positive and negative Eye Protrusion values mean?
In FaceIQ Labs' Eye Protrusion measurement, a negative value means the eye front lies behind the lower-eyelid reference, and a positive value means the eye front lies ahead of it. The sign convention describes FaceIQ Labs' own result format. Example values in the guide are not target ranges.
How is Eye Protrusion different from Orbital Vector?
Eye Protrusion in FaceIQ Labs compares the eye surface with the nearby lower-eyelid contour, while Orbital Vector is a separate Harmony measurement that uses the lower orbital reference rather than the lower eyelid. The two measurements therefore rely on different landmarks as their reference point.
How is an Eye Protrusion value calculated?
FaceIQ Labs calculates Eye Protrusion as (corneal-apex x − lower-eyelid x) × photo scale. In its worked example, an eye front 5 units ahead of the eyelid reference at 0.2 estimated mm per unit gives +1 mm. The guide says example values explain the calculation, are not a target range, and are not measurements of its schematic.
How accurate are the millimeter values for Eye Protrusion?
The millimeter values are approximate. FaceIQ Labs scales the photo using an assumed 190 mm hairline-to-chin height rather than a calibrated physical reference, so the values are estimates, not calibrated physical measurements. Eye Protrusion is also not a clinical measurement of eye protrusion.
Where does the Eye Protrusion measurement come from?
FaceIQ Labs describes Eye Protrusion as a FaceIQ photographic construction. Clinical profile analysis provides context, but the cited work does not validate this exact landmark formula or its scoring range. The one cited source is Farkas et al. (2005), an international anthropometric study of facial morphology across ethnic groups. It documents variation in facial dimensions across sampled populations; descriptive measurements do not establish an attractiveness score. FaceIQ Labs says its score weights and reference ranges are model settings, and the papers do not collectively validate the scoring system.
Which photo does FaceIQ Labs use for Eye Protrusion?
Eye Protrusion is a side-view measurement, so FaceIQ Labs takes it from the side photo. FaceIQ Labs standardizes side photos to the Frankfort horizontal plane during landmarking, and recommends photos taken six feet away with the back camera at 2x zoom, at eye level, with even lighting and a neutral expression. In its guides, Frankfort refers to the direction from the ear-opening landmark to the lower orbital landmark.
Frequently asked questions
Does Eye Protrusion affect my overall Harmony score?
No. FaceIQ Labs says Eye Protrusion currently has no weight in the Harmony score and is hidden in standard results.
What is the formula for Eye Protrusion?
(Corneal-apex x − lower-eyelid x) × photo scale, measured on the side-view photo.
Is Eye Protrusion a clinical measurement?
No. FaceIQ Labs states it is not a clinical measurement of eye protrusion. It is a FaceIQ photographic construction, and the cited Farkas et al. (2005) study does not validate its exact formula or scoring range.
What does a negative Eye Protrusion value mean?
A negative value means the eye front lies behind the lower-eyelid reference. A positive value means it lies ahead of it.
Why are the millimeter values only estimates?
FaceIQ Labs scales photos using an assumed 190 mm hairline-to-chin height, so the values are estimates rather than calibrated physical measurements.