What Does My Cancer Look Like?

For as long as I can remember I've had what has just been referred to as a birthmark, or brown freckle in my left eye. This is what has become the tumor.
Brown freckles or marks on the iris are very common and rarely become cancerous. But it is worth keeping note of any you may have, just as you would for moles and freckles on your skin, so that any changes can be checked out. And wear sunglasses!