Ocular Melanoma Comprehensive Guide: Early Detection, Types, and Treatment
Updated: 3 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
Quick Answer: Ocular Melanoma at a Glance
Ocular melanoma is a rare cancer that forms in the melanin-producing cells of the eye, mainly uveal or conjunctival melanoma. [1] Symptoms include blurry vision, growing blind spots and flashes, though early signs often cannot be seen or felt. [1] Risk factors include lighter skin and light eyes. [1] It can spread and is treated with surgery and radiation. [1]
Feature | Details |
Definition | A rare cancer that forms in the melanin-producing cells of the eye. [1] |
Main types | Uveal melanoma (iris, choroid, ciliary body) and conjunctival melanoma. [1] |
Key symptoms | |
Risk factors | White race, lighter skin, light-colored eyes, and a biological family history of melanoma. [1] |
Main complications | Spread (metastasis) to other parts of the body, vision loss, glaucoma, and cataracts. [1] |
Treatment | Surgery (removing part or all of the eye) and radiation therapy. [1] |
What the research says
For medium-sized choroidal melanomas, survival was similar with radiation or removing the eye. A review of the Collaborative Ocular Melanoma Study (COMS) found no difference in 5-year all-cause mortality between brachytherapy (plaque radiation) and enucleation (removing the eye) for medium-sized tumors. Radiation before surgery did not improve survival for large tumors. The authors note that the choice of treatment therefore shifts to goals such as preserving vision, and that the accuracy of the clinical diagnosis was excellent. (Margo, Cancer Control, 2004) [2]
A 2025 re-analysis of the 12-year data reached the same conclusion. At 12 years, there were 105 melanoma-related deaths in the brachytherapy arm and 98 in the enucleation arm (risk ratio 1.08, 95% CI 0.82 to 1.42). The authors concluded that the trial showed no clinically meaningful survival difference between the two treatments. (Gill et al., Melanoma Manag, 2025) [3]
What Is Ocular Melanoma?
Ocular melanoma, also called eye melanoma, is a rare type of cancer that forms on or inside the eye. [1] It begins in the cells that make melanin, the pigment that gives color to your skin, hair, and eyes. Most people think of melanoma as skin cancer, and that is where it is most common, but it can develop in any melanin-producing cells, including those in the eye. [1]
Ocular melanoma is rare, but it is serious and can be fatal. [1] It is also treatable, and it may be curable if it is found early. [1] That makes regular eye exams important, even for people who do not wear glasses or contact lenses. [1]
What are the types of eye (ocular) melanoma?
Healthcare providers classify ocular melanoma by where in the eye the cancer is. [1] The two main groups are uveal melanoma and conjunctival melanoma. [1]
Uveal Melanoma
The uvea is the middle layer of the eye. [1] Cancer here is also called intraocular melanoma. [1] It has three subtypes:
Conjunctival Melanoma
This type forms in the clear membrane (the conjunctiva) that covers the white part of the eye and the inside of the eyelids. [1]
What are the symptoms of ocular melanoma?
Ocular melanoma may not cause symptoms early on, but when symptoms occur they can include blurry vision, growing blind spots, eye flashes and redness or irritation. [1] Many of the early signs are things you cannot see or notice yourself, but an eye doctor can see them inside your eyes. [1] When symptoms do occur, they can include:
Vision changes: blurry vision, blind spots that get bigger over time, or other defects in the visual field. [1]
Visual disturbances: eye flashes (photopsias). [1]
Physical changes: redness or irritation, eye freckles (nevi), and dark spots in the eye that develop or change quickly. [1]
Sensory changes: eye pain or a feeling of extra pressure in or around the eye. [1]
What causes ocular melanoma and who is at risk?
Ocular melanoma develops when melanin-producing cells change (mutate) and multiply in ways they should not, forming tumors. [1] Experts are not always sure why this happens. [1] You may have a higher risk if you are white, have lighter skin, have light-colored eyes, or have a biological family history of melanoma. [1] If anyone in your biological family has had melanoma, tell your eye doctor.
How is ocular melanoma diagnosed and treated?
Early detection is important because it increases the odds of a cure and survival. [1] An eye doctor diagnoses it with an eye exam and some tests. [1] A slit lamp exam can show signs of cancer, even early on. [1]
Diagnostic Tools
Slit lamp exam: a close look at the structures inside the eye.
Imaging: fluorescein angiography, ultrasound, and optical coherence tomography (OCT) if the doctor sees signs of melanoma. A CT scan or MRI may be used to check whether cancer cells are anywhere else in the body. [1]
Biopsy: a fine-needle aspiration or biopsy can take a sample of a growth for laboratory testing to confirm ocular melanoma. [1]
You will also see a cancer doctor (oncologist) to stage the cancer and plan treatment. [1]
Treatment Options
Ocular melanoma is treatable, and in some cases it is curable. [1] The choice of treatment depends on the type of tumor, its size and location, and whether the cancer has spread. The most common treatments are:
What are the outlook and complications of ocular melanoma?
The outlook for ocular melanoma depends on its type, how early it was found, the size and location of the tumors and how well it responds to treatment. [1] Most people with eye melanoma that does not spread survive at least five years. [1] Survival rates are averages and cannot predict what will happen to you, [1] so talk with your cancer care team.
Primary ocular melanoma spreads (metastasizes) to other parts of the body in about half of all cases, [1] which makes treatment harder. It can be fatal, even with treatment, especially if it has spread. [1] Other complications include permanent vision loss, which can result from the cancer or from treatment such as surgery, and a higher risk of glaucoma, cataracts, and new refractive errors. [1]
What is the bottom line on ocular melanoma?
Ocular melanoma is a serious condition that shows why proactive eye care matters. A diagnosis can feel overwhelming, but early detection is the most powerful tool for a good outcome. Keep up with regular eye exams, and see an eye doctor as soon as you notice changes in your eyes or vision, especially if they happen suddenly.
Noticed a change in your eyes or vision? See an eye doctor as soon as you can, especially if it happens suddenly. Early detection raises the chance of cure and survival.
Frequently Asked Questions
Can ocular melanoma spread to other organs?
Yes. Primary ocular melanoma spreads (metastasizes) to other parts of the body in about half of all cases. [1]
Is eye melanoma curable?
Eye melanoma can be curable if it is found early. [1] It is treatable in many cases, but it can be fatal, especially if it has spread. [1]
How often should I get an eye exam to check for melanoma?
Get regular eye exams, even if you do not wear glasses or contacts, because many early signs can only be seen by an eye doctor. [1] Ask your eye doctor how often you need one, especially if you have risk factors like light skin or a family history of melanoma.
Can sun exposure cause ocular melanoma?
Experts are not always sure why ocular melanoma develops, and sun exposure is not on Cleveland Clinic's list of risk factors. Ask your eye doctor how best to protect your eyes.
Does ocular melanoma always cause pain?
No. Many early signs cannot be seen or felt. [1] Eye pain or a feeling of extra pressure can happen, [1] though, so see an eye doctor about any new symptom.
What is the difference between an eye freckle and melanoma?
An eye freckle (nevus) is a spot of pigment. A dark spot that develops or changes quickly should be checked by an eye doctor. [1]
Can children get ocular melanoma?
Ocular melanoma is rare. If you notice a change in a child's eyes or vision, have a doctor check it.
Will I lose my vision if I have eye melanoma?
Vision loss is possible, either from the cancer or from treatment such as surgery. [1] Your care team can explain what to expect.
What is a slit lamp exam?
A slit lamp exam is an exam that uses a high-intensity light and a microscope to look closely at the structures of the eye. It can show signs of cancer, even early on. [1]
Are there different stages of ocular melanoma?
Yes. A cancer doctor stages the cancer and plans treatment. [1]
Can ocular melanoma be prevented?
Experts are not always sure why ocular melanoma develops, [1] so there is no sure way to prevent it. Regular eye exams help find it early.
What is the survival rate for ocular melanoma?
Most people with eye melanoma that has not spread survive at least five years. [1] Survival rates are averages and cannot predict what will happen to any one person. [1]
What is a choroid melanoma?
A choroid melanoma is a type of uveal melanoma that forms in the choroid, the layer that supplies blood to other parts of the eye. [1]
Will the treatment affect my eye?
The treatment can. Treatment may mean surgery to remove tissue or the whole eye, or radiation. [1] Some treatments can cause vision loss as a side effect. [1] Your care team can explain your options.
Should I see an oncologist for eye melanoma?
Yes. A cancer doctor (oncologist) works with your eye doctor to stage the cancer and plan treatment. [1]
References
Cleveland Clinic. Ocular Melanoma. Cleveland Clinic. Updated April 17, 2026. https://my.clevelandclinic.org/health/diseases/ocular-melanoma
Margo CE. The Collaborative Ocular Melanoma Study: an overview. Cancer Control. 2004;11(5):304-309. PMID 15377989. https://doi.org/10.1177/107327480401100504
Gill VT, et al. Threshold analysis of mortality outcomes in the collaborative ocular melanoma study (COMS). Melanoma Manag. 2025;12(1):2494977. PMID 40323297. https://doi.org/10.1080/20450885.2025.2494977
Medical disclaimer
This article is for general informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional for diagnosis and treatment decisions.
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