What are the symptoms of retinoblastoma?

Retinoblastoma patients in the early stage generally do not appear obvious symptoms. As the tumor gradually increases, the patient's pupil area will appear yellow-white reflection, but also can appear vision decline, eye redness, swelling pain, eyelid swelling, eye protrusion and other symptoms, but also accompanied by strabismus, corneal opacity, glaucoma and other clinical manifestations

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