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How is radiation therapy used to treat retinoblastoma?

Radiation therapy kills retinoblastoma cells and slows the tumor's growth. It comes in two forms: external and internal. External therapy shoots radiation at the tumor from an outside source and is used if the eye can be saved. Internal radiation therapy involves the placement of radioactive materials directly on the eye. It can only be used if tumors are small. Both procedures are relatively but not completely safe.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.