We have seen people with Down syndrome with a variety of phobias. Concern about heights is one we see more commonly. For this fear in particular, we often ask if it is indeed a phobia or if it is caused by something else. Source: Brian Chicoine, MD Tags:anxietydepthdepth perceptiondesensitizationeye exameyesFearfear of heightsheightsmental healthmonocular visionphobiaphobiasVision