Well, yes, zinc deficiency can just lead to dry eyes in some degree. Generally speaking, Zinc is an important mineral required for a number of bodily functions involving energy and metabolism. First, you should know that one of its most important functions is to support our immune system. So that it can protect us from pathogens, infections, and disease. So when you suffer zinc deficiency, it will just cause many other problems. For example, it can just affect your eyes, leading to dry eyes, eye infection, even vision loss. Also, People with zinc deficiency can experience hearing loss, susceptibility to infections, hair loss, appetite and weight loss, dry skin, and anemia. That can be very dangerous. To treat it, you can just obtain zinc from dietary sources, such as peanuts and beef or lamb. Also, using zinc supplements if your diet does not provide adequate levels of zinc.