I need help and ideas for these questions. Any help will be appreciated. Thank you.

QUESTIONS:

How bad of an injury would cause a hemianopsia?
Would it depend on the object that was inflected upon the eye?
Is there any form of surgery that could correct the problem or is this something that is life long?
Is hemianopsia related to cataracts and astigmatisms?
Some of the information that I can find states that strokes patients or just neglect can have this. But the treatment for this could range from training the person to “scan” things with their eyes as to move around the heminopsia to having them do crossword puzzles (Rummel, 2006). What do you think?
Is a hemianopsia really curable?