Here, it seems as if Prufrock is comparing himself to an insect, pinned to a board and used to study. Prufrock seems to mention a lot of body parts and this time, the eyes are used for examining and observing. He doesn't seem to like how it feels to be judged or made simple, but I can see how he doesn't like to be judged by other people from simply these two lines.

This is yet another refrence to the bible, referring to John the Baptist, the man who baptized Jesus and died after the stepdaughter of a powerful king asked for his head on a platter. It is now one of the most sought after Christain relics, though no one knows if the head they pocess is truly John's. Prufrock is essentially saying he doesn't want to be confused for a prophet and shouldn't be taken seriously in that sense.

This line stands out to me because whenever I'm told to imagine the desert, I think of the endless sands, mirages of oasises, and of course, the dark birds that fly above waiting for their next meal. Yeats' use of this imagery really helps helps me imagine just what this desert looks like and makes me wonder how long the sterotypical birds have been featured in literature, film, and even tv shows.