IMRT 2018

Optic Neuropathy Risk after RS

The risk of developing a clinically significant RON was 1.1% for patients receiving 12 Gy or less with a median F/u of 40 months Patients receiving prior or concurrent EBRT had a greater risk of developing RON after radiosurgery Stafford et al., IJROBP, 2004

≥14Gy

<8Gy

<9-14Gy

Patient had previous EBRT 60 Gy

Hasegawa et al., Nerurosurgery, 2010