my father is 68 years old, and he has been using cosopt and Xalatan for his right eye for glokom. and he opereted for cataract 2 days ago, but he cant see anything, when we ask for the doctor, he says his glokom level is too high and it causes corneal oedema so the doctor says we have to wait for oedeme . but my father cant see anything after the cataract operation. The corneal oedema is the normal for the glokom diseased, and is it the normal that my father cant see anything after the cataracat operation for 2 days