Answer the following four discussion questions:
1. The eye is an amazing part of the human system. To truly  appreciate its inner workings, first compare and contrast the  photo receptors of the eye, then discuss the key differences between focal and peripheral vision, and finally explain what the “physiological” blind spot is.

2. In aviation, visual illusions can be interpreted as quite real  events. One particular visual illusion which has proven to be quite  deadly in aviation is the “black hole” illusion. With that said,  describe what a “black hole” illusion is, what corrective action to take  in-flight, and how an aviator can prevent it from occurring.

3. Hearing is another important sense in the aviation environment.  Please discuss three types of hearing loss and what treatment or methods  are available to mitigate hearing loss.

4. Discuss why you believe that vision is considered to be the most important sense in the flight environment.