---
title: "Eyelid — App Overview"
url: https://marlvel.ai/apps/jp-co-rugle-eyelid
category: Health & Fitness
developer: Medic Engineering K.K.
platforms: ios, android
rating: 2.0 (1 ratings)
pricing: paid
report_level: overview
generated: 2026-04-23
last_verified: "2026-04-23T09:42:20.313Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** Eyelid is a manual measurement utility for ocular analysis that explicitly disclaims any diagnostic capabilities.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Health & Fitness |
| Rating | 2.0 ★ (1) |
| Pricing | paid |
| Platforms | iOS, Android |
| Latest Version (iOS) | 4.1.2 |
| Latest Version (Android) | 1.3 |
| Developer | Medic Engineering K.K. |

<!-- SECTION: Summary -->
## What is Eyelid?

Eyelid is a specialized measurement tool designed to calculate the opened-eye ratio (OER) based on eyebrow and eyelid positioning. The app utilizes manual landmark placement on photographs to determine upper eyelid position (UEP) and eyebrow position (EBP). It includes a built-in spirit level camera to ensure image alignment for consistent measurements.

<!-- SECTION: Key Features -->
## Key Features

- **Ocular Measurement Tools**: Calculates the opened-eye ratio by manually setting landmarks on the corneal limbus, eyebrow, and eyelid margins.
- **Integrated Spirit Level**: Features a camera with an integrated spirit level to ensure photographs are captured at a straight, consistent angle.
- **Customizable Parameters**: Allows users to adjust the initial corneal size, including both transverse and longitudinal diameters.
- **Data Export**: Provides the ability to save measurement results and images in JPEG format.

<!-- SECTION: Target Audience -->
## Who is it for?

Medical professionals or researchers requiring precise, manual ocular measurements from photographs.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/eyelid/id964690025?uo=2)
- [Google Play](https://play.google.com/store/apps/details?id=com.taikwun.pipilotti&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/apps/jp-co-rugle-eyelid)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/jp-co-rugle-eyelid).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*