Yes, it is possible for you to get some eye problems from crohns disease because of the coming bacterium and dehydration. The crohns refers to the chronic inflammatory disease in the intestinal tract. There are many reasons to cause the crohns, such as bacteria and mold virus. The protozoon microbial infection, allergy and other reasons may cause it too. In addition, the long-term excessive fatigue, emotional and mental stress, malnutrition, chewing disorder, acid deficiency, intestinal parasitic diseases and so on are also the main reasons for the crohns diseases. However, your body is infected by the bacterium which will indirectly affect your eyes. Your eyes may feel dry which will feel uncomfortable. However, you need to take the medical treatment to cure the crohns. In addition, you'd better keep the good habit of good hygiene.