A.
the visual area seen by an eye at a given instant.
B.
The area of the vision field is dependent on the color, white have the biggest field, and green has the smallest.
C.
vision field is helpful for diagnosis of the disease in optic nerve, visual pathway and retina.
D.
nasal field vision is bigger than that of temporal.
E.
the difference of the vision field of different colurs is not casued by the distribution of cones in retina.