My Father Is (Diabetes) Controlled By Meds. On A Normal

my father is (Diabetes) controlled by meds. on a normal day hill check & discover : 105, 95, 110 ...
two day ago, he start seeing blurry on his right eye. doctor checked, and discovered bleeding in back of his eye. checking his sugar they discover at the time was 250. he also takes Xarelto for his hurt condition (open hurt surgery a 1 1/2 ago.) eye doctor did not stop any medicine that his taking, i sujested to stop Xarelto for now. his 84 year old , never smoked, or abuse his health. what do you commande.