Gordon 's right eye was removed January 11 , 1957 , because the cancer had spread .
Historical image showing Gordon Isaacs , the first patient treated with linear accelerator radiation therapy ( in this case an electron beam ) for retinoblastoma in 1957 .
patient 's right eye was removed January 11 , 1957 , because the cancer had spread .
Historical image showing Gordon Isaacs , the first patient treated with linear accelerator radiation therapy ( in this case an electron beam ) for retinoblastoma in 1957 .