 [ Symptoms ] i have cancer and i would like to know what stage 11a dukesb macbs means  i have stage 11 colon cancer and i would like some info on my question what are my chances after having chemo [ Disease ] i would definitely have his eyes checked by an ophthamologist vs an optometrist i have migraines and i find it really scary when my vision is affected i was diagnosed though by going to an ophthamologist i am sure you were looking for more but i hope this helps a little bit good luck