# What is an Eye Freckle (Conjunctival Naevus)?

Source page: https://www.kudretgozistanbul.com/en/blog/eye-diseases/what-is-an-eye-freckle

**Author:** Kudret Eye İstanbul | **Medical Approval:** Op. Dr. Mehmet Ali Özdil | **Date:** 2026-09-12

> **Summary:** An eye freckle (naevus) is a benign pigmented spot formed by a cluster of melanocytes, similar to a skin mole, on the conjunctiva, iris or choroid. It usually causes no symptoms and needs no treatment, but because it can very rarely turn into ocular melanoma, it should be monitored regularly by an ophthalmologist.

## Quick Facts
- **Medical name:** Naevus
- **Most common type:** Conjunctival naevus
- **Symptoms:** Usually none
- **Treatment:** Usually regular check-ups with photographic monitoring
- **Not an infection:** Not contagious; drops, antibiotics and medicines do not remove it

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## Types of Eye Freckle
- **Conjunctival naevus:** on the membrane over the white of the eye, visible in the mirror; the most common type. It may be brown, light brown or almost colourless and may contain small cyst-like structures.
- **Iris naevus:** a dark dot or spot on the coloured part of the eye.
- **Choroidal naevus:** in the vascular layer beneath the retina, not visible from outside; usually found by chance during a fundus examination.

Moles can also appear on the eyelid skin.

## Causes
The exact cause is not fully known; melanocytes cluster in one area. Many are present from birth or become noticeable in childhood and adolescence. Possible factors:
- **Genetic predisposition:** many moles in yourself or your family.
- **Sunlight (UV):** prolonged, unprotected exposure.
- **Hormonal periods:** puberty and pregnancy can darken existing moles.

## Symptoms
Usually none: no pain, itching, redness or vision loss. Redness, watering or burning usually come from another eye problem and should be assessed separately.

## Why Monitoring Matters
Very rarely a freckle turns into ocular melanoma. Warning signs:
- Growing larger or becoming raised
- Colour darkening, lightening or becoming uneven
- A change in shape or borders
- New blood vessels on or around it
- Blurring or other vision changes
- Flashes of light or floaters

The first examination records the freckle with photographs, and later images are compared with them. The check-up interval depends on the freckle's location and features.

## Diagnosis
- **Slit lamp (biomicroscope):** for conjunctival and iris naevi.
- **Dilated fundus examination:** for choroidal naevi.
- **Photography:** anterior segment or fundus photos to compare size and colour over time.
- **OCT:** mainly for choroidal naevi, showing the retina over the freckle and any fluid build-up.
- **Eye ultrasound:** measures and monitors choroidal naevus thickness.
- **Pathology:** gives the definitive diagnosis for surgically removed freckles.

## Treatment
Unchanging, benign-looking freckles are monitored. Conjunctival naevi may be removed surgically when:
- Growth or a change in colour or shape is seen during follow-up
- The person is bothered cosmetically
- The freckle causes irritation or discomfort

The freckle is removed with a small margin of healthy tissue and sent for pathology. Iris and choroidal naevi are usually not removed but monitored with examinations, photographs, OCT and, where necessary, ultrasound; suspected malignant change leads to referral for further assessment.

## When to See an Ophthalmologist
- A new freckle or spot you had not noticed before
- Growth, colour or shape change, or new vessels on a known freckle
- New blurred vision, flashes or floaters (do not wait for the scheduled check-up)

Wear UV-protective sunglasses in the sun and keep up with recommended check-ups.

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## Frequently Asked Questions

**Q: Is an eye freckle harmful?**
A: The vast majority are benign and do not affect vision, but because they can very rarely turn into melanoma, regular checks are recommended.

**Q: Does an eye freckle go away on its own?**
A: Usually not; it can look the same for many years. It may darken during puberty or pregnancy, and such changes should be assessed.

**Q: Does an eye freckle need to be removed?**
A: Most need only monitoring. Conjunctival freckles may be removed for suspicious changes or cosmetic reasons, with pathological examination of the tissue.

**Q: Can eye freckles turn into cancer?**
A: Rarely. Growth, colour or shape change, new vessels or vision change should be examined carefully; photographic monitoring is recommended.

**Q: Can drops or medication treat an eye freckle?**
A: No. It is a cluster of pigment cells, not an infection. Where necessary, conjunctival freckles are removed surgically; for freckles inside the eye, further treatment is planned if a malignant change is suspected.