---
title: "Sanpaku Eyes Test: Is It Your Eyelids or the Camera? | CEVO"
canonical_url: https://cevolab.com/tools/sanpaku-eyes-test
markdown_url: https://cevolab.com/tools/sanpaku-eyes-test.md
publisher: CEVO (cevolab.com)
method: 478-point MediaPipe face map · 11.7 mm iris ruler · too-close photos are retaken, never edited
last_verified: 2026-10-27
ai_summary: "Free sanpaku eyes test: drag six dots onto a front photo to see whether white shows below your iris, and whether it comes from your eyelids or the camera angle. The photo stays in your browser. CEVO's scan reads your iris size to tell how close the camera was, and asks for a retake if the photo was taken too close."
---

# Sanpaku eyes test. See if white shows below your iris.

> **AI & Retrieval Summary (`ai-summary`):** Free sanpaku eyes test: drag six dots onto a front photo to see whether white shows below your iris, and whether it comes from your eyelids or the camera angle. The photo stays in your browser. CEVO's scan reads your iris size to tell how close the camera was, and asks for a retake if the photo was taken too close.

- **Canonical HTML Route:** [https://cevolab.com/tools/sanpaku-eyes-test](https://cevolab.com/tools/sanpaku-eyes-test)
- **Machine-Readable Markdown Twin:** [https://cevolab.com/tools/sanpaku-eyes-test.md](https://cevolab.com/tools/sanpaku-eyes-test.md)
- **Free scan from one front photo:** [https://cevolab.com/start](https://cevolab.com/start?utm_source=seo&utm_medium=markdown&utm_campaign=sanpaku-eyes-test)
- **Meta Description:** Free sanpaku eyes test: drag six dots onto a front photo to see whether white shows below your iris, and whether it comes from your eyelids or the camera angle.

Drag the dots onto each iris and lower lid. See if white shows below, and if the camera caused it.

Free, and your photo never leaves this device.

## What your result means

- **This test checks below the iris** Sanpaku means white shows below or above the iris. This test looks below.
- **Selfies exaggerate it** A phone above your eyes makes you look up, so more white shows. With your own photo, tell the test where your phone was.
- **It isn't a sign of fate** Lower white comes from how the lower lid sits and how high the camera was.

## What you can change

Where you hold the phone changes how much white shows below the iris.

- Phone above her eyes Phone at eye level **Hold the phone at eye level:** Looking up at a phone shows a strip of white below the iris. If the camera caused it, the white goes when the phone is at eye level.

## The three results

The current result is marked. Tap one to see what it means.

White above the iris (upper sanpaku) usually comes from opening the eyes wide. This test checks below only.

## What CEVO gives you. From one selfie.

- **A 478-point face scan:** Every point of your face mapped from one selfie, plus a side photo for your profile.
- **169 tests, region by region:** Twelve regions of your face measured, from brows to jawline, plus the age your face reads as.
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- **A 90-day routine:** Hair, skin and grooming steps to follow for 90 days, made for your face.

- $29 **Basic Readout:**
  - Up to 10 front-view tests
  - Your facial balance breakdown, feature by feature
- $59 Recommended **Complete Clinical Dossier:**
  - Front and side: all 169 tests
  - Glow-up and up to 3 hairstyles on your own face
  - 90-day routine and your facial age
- $119 **Master Suite, the surgery pack:**
  - Surgical simulation with a millimetre change map
  - Surgeon-ready PDF and up to 10 hairstyles
  - 4 re-scans over a year

One payment, no subscription. Every report is checked by our team and ready within 24 hours.

## How the free scan works

1. **Take a selfie:** Prop your phone at eye level, about 1.5 m away. Too close, and CEVO asks for another photo.
2. **See your face shape and what suits you:** Free: your face shape, your strengths and your first tips, in plain words.
3. **Decide if you want more:** See how many more tips are waiting for you. Unlock them only if you want them.

Your face shape and what suits you, free.

## Questions

### What are sanpaku eyes?

Sanpaku is Japanese for "three whites". Besides the white on each side of the iris, a third strip shows below it (lower, or yin sanpaku) or above it (upper, or yang sanpaku).

### Why do I have sanpaku eyes in selfies but not in the mirror?

Camera height. With the phone above eye level your eyes roll up to the lens while the lower lids stay put, so white shows below the iris.

### How much white counts as sanpaku?

This test counts it when a visible strip of white shows below the iris with the phone at eye level. A lid that meets or covers the bottom of the iris is the usual look.

### Is the sanpaku curse real?

No. The idea comes from a 1960s book by George Ohsawa. White below the iris comes from camera angle and how the lower lid sits, not from fate.

## How the test measures the white below your eyes

### How the test measures the white below your eyes · How the dots trace each iris, how the phone height is allowed for, what each pattern looks like, and the studies behind them.

Each iris is drawn as a circle through its two edge dots. The gap is the distance from the bottom of that circle to the lower-lid dot, as a share of the iris height. When you say the phone was above your eyes, the test allows a thin strip of white for that angle. Below: what each pattern means, how camera height adds white, and our sources.

### **What sanpaku means:**

**What does "Sanpaku" mean?** In Japanese, *sanpaku* literally means "three whites." On most people, you only see the white of the eye (the *sclera*) on two sides: left and right of the colored iris. If a strip of white also shows below the iris when looking straight ahead, it is called Yin Sanpaku. If white shows above the iris, it is called Yang Sanpaku (*superior scleral show* at upper lid).

**What counts?** This test calls it sanpaku when a visible strip of white shows below the iris with the camera at eye level. A hairline gap, or a lid that covers the iris edge, reads as no sanpaku.

### **How the test reads the gap:**

These are this test's own cut-offs, not clinical definitions. The gap is measured as a share of the iris height, so it works at any photo size. The bands are wide on purpose, so a dot a pixel or two off does not change the answer.

| Where the lower-lid dot sits | What it says |
| --- | --- |
| More than 5% of the iris height above the bottom of the iris | Lid covers the bottom of the iris |
| Within 5% above to 12% below the bottom of the iris | Lid meets the bottom of the iris |
| More than 12% of the iris height below the bottom of the iris | A strip of white shows below |
| White shows, the phone was above your eyes, and the strip is within this test's allowance for that angle (10% of the iris height) | White shows, likely from the camera angle |
| White shows with the phone at eye level or below, or more white than this test's allowance for a high phone | White shows, and it's your lids |

### **Why the test gives no millimetres:**

The only ruler in a selfie is the iris itself. The clear part of the adult eye is about 11.71 ± 0.42 mm across (Rüfer et al. 2005), so the test could turn pixels into millimetres, but the answer would look far more exact than it is. The 12% band is about 1.4 mm on an average iris, the 5% band about 0.6 mm, and this test's allowance for a high phone about 1.2 mm. The example photos here show each iris about 30 to 36 px wide, so one pixel is already about a third of a millimetre. Zoom into one eye to place each dot; the bands are wider than a pixel or two of error.

| Iris width in the photo | One pixel is about | The 12% band is about |
| --- | --- | --- |
| 20 px | 0.59 mm | 2.4 px |
| 30 px | 0.39 mm | 3.6 px |
| 40 px | 0.29 mm | 4.8 px |
| 60 px | 0.20 mm | 7.2 px |
| 100 px | 0.12 mm | 12 px |

So the test reads the white in three wide bands and says what it sees in words.

### **Three common looks:**

Your colored iris is a circle sitting inside the almond-shaped window of your eyelids. On most faces the upper eyelid covers the top edge of the iris, and the lower eyelid rests along its bottom edge. These are the three looks this test tells apart:

- **No white below** The lower eyelid touches or slightly overlaps the bottom edge of the iris. Most adults look like this.
- **White from the camera angle** A phone held above eye level makes the eyes roll up to the lens while the lower lid stays put, so white shows below the iris in that photo only.
- **White from the lids** A rounder, taller eye opening, or a lower lid that sits a little lower, shows a strip of white below the iris at any camera height. This is lower, or yin, sanpaku.

### **What counts as normal vs. sanpaku eyes?:**

Eye doctors and facial studies measure how tall the eye opens and where each lid sits against the iris (van den Bosch et al. 1999; Rhee et al. 2012). Here is how the common patterns compare, in plain words:

| Pattern | White below the iris | White above the iris | What it looks like |
| --- | --- | --- | --- |
| Lid over the iris edge · No lower white | None: the lower lid overlaps the bottom of the iris | None | The lower lid sits snug along the bottom of the iris. |
| Lid at the iris edge | None, or a hairline | None | No white strip at talking distance, though a thin strip can appear when you look up at a high selfie camera. |
| Selfie-angle white · From the camera, not the lid | A strip in the photo, none at eye level | None | A phone held above eye level makes your eyes roll up to the lens while the lower lid stays put, which shows white below the iris. |
| Mild lower sanpaku | A thin crescent, even at eye level | None | A thin crescent of white shows under the iris even when looking straight into a mirror, even with the phone at eye level. |
| Clear lower sanpaku · Inferior scleral show | A clear band at eye level | None | A clear white band under the iris, from a rounder eye opening, a lower outer eye corner or how the cheek sits below the eye. |
| Upper sanpaku (yang) · Superior scleral show | None, or a hairline | A strip above the iris | White shows *above* the iris. It usually happens when someone widens their eyes for a photo. If it shows at rest, check with an optometrist. |

### **Why a high phone creates sanpaku eyes in selfies:**

Many people hold the phone above eye level for a selfie and tip the chin down so the jawline looks sharper. To look at the lens, the eyes roll up while the lower lids stay where they are, so white shows below the iris. A phone held close also changes how the face looks (Ward et al. 2018), and people judge a face differently when the photo is taken from close up (Bryan et al. 2012).

| Where the camera is | What happens to your eyes | What to do |
| --- | --- | --- |
| At eye level, a few steps away (or a mirror) | No added white. This is the true reading. | Stand a few steps back from a mirror, or have someone take the photo at your eye height. |
| A little above eye level | Your eyes roll up a little to find the lens, and a thin strip of white can appear below the iris. | Lower the phone until the lens is level with your pupils. |
| High, with the chin tucked | The eyes roll up further while the lower lids stay put, so more white shows. | Hold the phone at eye height with your chin level, or ask someone else to take the photo. |

### **Photos and makeup around the eyes:**

If you want the white below your iris to show less in photos, or want to play it up, two everyday changes help:

#### **Put the camera at eye level:**

Whenever you take a photo or sit on a video call, put the lens level with your pupils, or a touch lower, and keep your chin level. Looking straight at the lens, or slightly down at it, closes the strip of white a high camera adds.

#### **Lashes and the lower waterline:**

To show less white: darker lashes on the lower lid. To play it up: a light pencil on the lower waterline. Both are a matter of taste.

### **Sources:**

1. van den Bosch WA, Leenders I, Mulder P (1999). *Topographic anatomy of the eyelids, and the effects of sex and age.* British Journal of Ophthalmology, 83(3), 347–352. [DOI: 10.1136/bjo.83.3.347](https://doi.org/10.1136/bjo.83.3.347)
2. Rhee SC, Woo KS, Kwon B (2012). *Biometric study of eyelid shape and dimensions of different races with references to beauty.* Aesthetic Plastic Surgery, 36(5), 1236–1245. [DOI: 10.1007/s00266-012-9937-7](https://doi.org/10.1007/s00266-012-9937-7)
3. Price KM, Gupta PK, Woodward JA, Stinnett SS, Murchison AP (2009). *Eyebrow and eyelid dimensions: an anthropometric analysis of African Americans and Caucasians.* Plastic and Reconstructive Surgery, 124(2), 615–623. [DOI: 10.1097/PRS.0b013e3181addc98](https://doi.org/10.1097/PRS.0b013e3181addc98)
4. Ward B, Ward M, Fried O, Paskhover B (2018). *Nasal Distortion in Short-Distance Photographs: The Selfie Effect.* JAMA Facial Plastic Surgery, 20(4), 333–335. [DOI: 10.1001/jamafacial.2018.0009](https://doi.org/10.1001/jamafacial.2018.0009)
5. Bryan R, Perona P, Adolphs R (2012). *Perspective distortion from interpersonal distance is an implicit visual cue for social judgments of faces.* PLoS ONE, 7(9), e45301. [DOI: 10.1371/journal.pone.0045301](https://doi.org/10.1371/journal.pone.0045301)
6. Rüfer F, Schröder A, Erb C (2005). *White-to-white corneal diameter: normal values in healthy humans obtained with the Orbscan II topography system.* Cornea, 24(3), 259–261.

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- [True mirror: Your face as others see it](https://cevolab.com/tools/true-mirror-online)
- [Why selfies change your face: What a close phone camera does](https://cevolab.com/research/24mm-selfie-distortion-study)
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## See what suits your face. Free, from one selfie.

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---
## CEVO reports and prices

| Tier | Price | Delivery | What you get |
| --- | --- | --- | --- |
| Free scan | $0 | A few minutes | One front photo: your face shape, your strengths and your first tips in plain words, plus a count of the tips your report unlocks ([cevolab.com/start](https://cevolab.com/start)) |
| Basic Readout | $29 | Within 24 hours after the photo is accepted | Up to 10 front tests and a facial balance breakdown, feature by feature (front photo only) |
| Complete Clinical Dossier | $59 | Within 24 hours after the photos are accepted | A side photo and the 169-test analysis, your facial age, a natural glow-up on your own face, up to 3 hairstyle renders, brow, makeup or beard previews and a 90-day routine |
| Master Suite (the surgery pack) | $119 | Within 24 hours after the photos are accepted | Everything in the $59 report plus the surgical simulation, up to 10 hairstyle renders, a surgeon PDF and quarterly re-scans |

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