Retinoblastoma is a type of eye cancer that begins in the retina. Retina is the sensitive lining on the inside of your eye. Retinoblastoma most commonly affects young children, but can rarely occur in adults. Retinoblastoma can either affect one or both eyes. It occurs when nerve cells in the retina develop genetic mutation which leads to a continuous growth of cells when healthy cells would die forming tumor. In later stages, retinoblastoma can metastasize to other areas of the body, including the brain and spine.
Mole can be a sign of eye melanoma, but tests are needed to confirm the diagnosis as it can be something else too. People with eye cancer suffer from blurred vision, partial or total loss of vision, bulging of one eye, etc. Shadows, flashes of light, or wiggly lines in your vision are observed. In some cases, a lump on your eyelid or in your eye might appear which increases in size. Change in iris color is also a sign of eye melanoma.
Retinoblastoma is a type of eye cancer that begins in the retina. Common symptoms and signs of retinoblastoma are shown in the image. Leukocoria (also known as a cat's eye reflex or white pupillary reflex) and strabismus (lazy eye) are signs appearing in more than 20% of the cases. Squint, pseudoinflammation, pain or redness in the eye, a change in the color of the iris, poor vision, etc are other common symptoms associated with retinoblastoma.
Close up of a suspicious mole in an eye of a woman. Certain signs and symptoms including a mole might suggest that a person could have eye melanoma, but tests are needed to confirm the diagnosis. If the dark spot or the mole in the iris gets bigger, it may be a sign of concern. The cancer can be benign in several cases, but regular checkup is necessary as it might otherwise lead to loss of vision in case of a serious problem.