Answer the following questions.
What gives a perception of depth or three dimensional vision to human eye?

Answer the following questions. What is the far point of a normal human eye?

The persistence of vision for human eye is

Give an example of three-dimensional motion.

Answer the following questions. How does the defect of myopia arise in a human eye?

Look at the figure and answer the following questions: What is the name of the circular aperture through which light enters the eye?

Answer the following questions. The eyeball is approximately spherical in shape. What is the diameter of a norinal human eye ball?