What is Retinoblastoma?

Retinoblastoma is a specific type of cancer that typically develops in the retina, which is the layer of tissue at the back of the eye responsible for sensing light and sending visual signals to the brain. This cancer most commonly occurs in young children, often before the age of five, and can affect one or both eyes.

The key aspects that identify retinoblastoma as a type of eye cancer include its origin from retinal cells and its potential to spread if not treated promptly. Symptoms may include a white pupillary reflex (leukocoria), strabismus (crossed eyes), or other vision problems. Early detection is crucial for effective treatment, which may involve chemotherapy, radiation therapy, or surgical intervention.

The other options provided do not correctly describe retinoblastoma, focusing instead on unrelated medical conditions or injuries, thus emphasizing the importance of understanding retinoblastoma's specific characteristics and context within the realm of ocular health.