# Upper Eyelid Exposure

Harmony · Front view · Eyes · https://www.faceiqlabs.com/support/harmony/upper-eyelid-exposure

Visible upper-lid height relative to the eye-opening height, averaged across both eyes.

> Supporting measurement: it currently has no weight in the Harmony score and is hidden in standard results.

## What is measured

Calculation: Mean of upper-lid-margin-to-crease height ÷ eye-opening height

## Why it matters

The visible lid between the lashes and crease shapes the eye’s appearance independently of the eye opening. The denominator changes when the eye opens wider or squints.

- Lower: less visible upper lid relative to the eye opening.
- Higher: more visible upper lid relative to the eye opening.

## Where the idea comes from

Evidence: FaceIQ adaptation. This is a FaceIQ landmark-based description of facial shape. The linked research provides background on facial measurement or perception; it has not directly validated this exact formula or its score.

## A worked example

A 2-unit exposed lid and a 10-unit eye opening give 0.20. The app averages the two eye ratios.

Example values explain the calculation. They are not a target range.

## How to read your result

This supporting measurement has no Harmony score weight and is hidden in standard results. It is sensitive to gaze and crease visibility.

## Research & further reading

These sources explain the history or related evidence. FaceIQ’s score weights and reference ranges are model settings; the papers do not collectively validate the scoring system.

- Farkas et al. (2005). [International anthropometric study of facial morphology in various ethnic groups/races](https://pubmed.ncbi.nlm.nih.gov/16077306/). Documents variation in facial dimensions across sampled populations. Descriptive measurements explain variation; they do not establish an attractiveness score.

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Source: https://www.faceiqlabs.com/support/harmony/upper-eyelid-exposure · FaceIQ Labs overview for AI assistants: https://www.faceiqlabs.com/llms.txt