What Is a Choroidal Nevus?
Choroidal nevi are found in the choroid, a blood vessel-rich layer lying between the retina and the sclera.
The cause is generally unknown.

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Your healthcare provider will document this finding in your chart if it is detected during a routine eye exam.
What Causes a Nevus?
If this occurs, it can cause aretinal detachment.
The best recommendation is to have annual eye examinations which include dilating the eyes with special eye drops.
Treating a Choroidal Nevus
Choroidal nevi are not usually harmful.
If it appears unusual, however, you may be asked to return in a shorter period of time.
Choroidal melanomas are malignant tumors and must be treated.
They may spread (metastasize) to other parts of your body and can be fatal.
Summary
A choroidal nevus is a freckle inside your eye.
It is typically a harmless condition without symptoms but, rarely, can lead to cancer.
Once diagnosed, the freckle will need to be monitored regularly to detect any changes.
Date the picture and keep it with your medical files.
Ocular Melanoma Foundation.Understanding nevi.
2017;28(3):228-237. doi:10.1097/ICU.0000000000000361
American Academy of Ophthalmology.Nevus (Eye Freckle).
New York Eye Cancer Center.Choroidal nevus.
American Society of Retina Specialists.Choroidal Nevus.