Does brachytherapy treat retinoblastoma?

It is a local option rather than the right treatment for every child. The specialist team considers the tumour's position and extent, previous treatment, vision potential and the condition of the eye before offering it.

During an operation, a small disc carrying a radiation source is stitched onto the outside of the eye beside the tumour. Its position concentrates radiation into the retinoblastoma and reduces the dose reaching parts of the body farther away.

The plaque remains for the time set by the radiation plan and is then removed in a further procedure. Young children usually need anaesthesia for placement and removal. Families receive specific radiation-safety guidance while the plaque is in position.

Later effects can include changes to the retina, lens, blood vessels or other eye tissues. The impact on sight depends partly on where the tumour lies, so eye examinations continue after the plaque has been removed.

Give the team a full list of medicines, allergies, recent infections and previous reactions to anaesthesia. Follow the hospital's instructions for fasting, medicines, eye drops and arrival, and bring familiar comfort items if permitted.

Keep the eye shield in place as instructed and prevent rubbing or pressure on the treated eye. Follow visitor and close-contact precautions while the plaque is fitted. After removal, administer prescribed drops and attend every scheduled eye examination, including visits that require anaesthesia.

Contact the specialist eye team urgently if your child has severe or increasing eye pain, sudden swelling, spreading redness, pus-like discharge, persistent bleeding, fever, repeated vomiting, unusual sleepiness or a displaced eye shield.

After anaesthesia, use the discharge team's emergency instructions for breathing problems, difficulty waking or inability to keep fluids down. If an older child reports a sudden change in vision, flashes, many new floaters or a dark shadow, arrange urgent eye assessment.

Ask why plaque treatment is being chosen over other eye-directed options, what it may mean for sight, which precautions apply at home and how discomfort will be managed. Clarify the plan for examining both eyes, monitoring tumour response and discussing whether genetic counselling is appropriate for your family.