Retinoblastoma is a rare and aggressive eye cancer that primarily affects young children, typically under the age of five. The most common sign is a white or yellowish reflection in the pupil, known as leukocoria, which is often noticed in photographs taken with flash. Other symptoms may include crossed eyes (strabismus), persistent redness, swelling, or poor vision in the affected eye. The condition is often linked to genetic mutations in the RB1 gene, which can be inherited from a parent or occur spontaneously. Early detection is critical for successful treatment, which may involve a combination of chemotherapy, laser therapy, cryotherapy, radiation, or surgery, depending on the size and spread of the tumor. Preserving vision and preventing the spread of cancer are the primary goals of treatment. For more information, visit Dr. Maria's Eye Clinic in Saligramam, Chennai, conveniently located near Vadapalani, Virugambakkam,  and KK Nagar.