a) What is a Naevus?
A naevus is the medical term for a “mole”. Like on the skin, this can also occur in the eye and is commonly spotted on routine examination by your optometrist. They can be found on the choroid, ciliary body or iris. This can be referred to as uveal naevus. You are more likely to get a naevus if you have white skin or blue eyes. They can sometimes grow during puberty and pregnancy. Although naevi are benign, very rarely they can turn into melanoma (cancer of the eye). For this reason your optometrist might examine your eyes routinely every year.
b) What are the symptoms?
Naevi in the eye generally do not cause symptoms. If, however, the naevus turns into melanoma patients may experience:
• Decreased vision
• Flashing lights
• Shadow in the vision
c) Will I need any tests?
Simple uveal naevi are monitored in the community by your opitcian. If examined in the eye clinic, photographs of the naevus help us to detect any changes at later visits. Other tests may include:
• Ultrasound scan
• Optical Coherence Tomography (OCT)
d) Will I need treatment for Naevus?
No treatment is needed for uveal naevus.