Retinoblastoma is a rare type of eye cancer that can affect young children (usually under 5 years of age).
If it’s picked up early, retinoblastoma can often be successfully treated (children treated for retinoblastoma diagnosed at an early stage have a survival rate of more than 95%).
Retinoblastoma can either affect one or both eyes. If it affects both eyes, it’s usually diagnosed before a child is 1 year old. If it affects one eye, it tends to be diagnosed later (between the ages of 2 and 3).
Signs and symptoms of retinoblastoma include:
These symptoms may be caused by something other than retinoblastoma.
It’s unusual for retinoblastoma to progress unnoticed beyond the age of 5. Signs in older children include the eye appearing red, sore or swollen, and some loss of vision in the affected eye.