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AW > Misc > Flashcards

Misc Flashcards

1
Q

Ionising radiation dose to induce cataract formation?

A

2 gy -
dose exposure to ionising radiation can induce cataract formation

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2
Q

What is the usual dose of treatment of diseases such as retinoblastoma?

A

20-100 gy
Delivered in fractionated smaller doses

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3
Q

How soon does radiation retinopathy develop after being exposed?

A

2 years

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4
Q

MC side effect related to cornea exposed to ionising radiation?

A

Punctate epithelial erosion

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5
Q

Most radiosensitive structure in eye?

A

Lens-Cataract (2 gy) >cornea > retina >optic nerve

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6
Q

How long does it take for cataract to develop in a lens exposed to ionising radiation?

A

Latency period-2-3 years
especially in young individuals with actively growing lens fibres
2 gy dose exposure to ionising radiation can induce cataract formation

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AW (12 decks)

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