Question

In human beings, total visual field and stereoscopic visual field are ______ and ______ respectively.

• A. ${140}^o$ and ${52}^o$
• B. ${140}^o$ and ${26}^o$
• C. ${180}^o$ and ${140}^o$
• D. ${180}^o$ and ${26}^o$

Answer 1

The correct option is C ${180}^o$ and ${140}^o$

The total visual field refers to the total area in which objects can be seen in the peripheral vision, while the eyes is focused on the central point. It is defined as that portion of space in which objects are visible at the same moment during steady fixation of gaze in one direction. It is 180 degrees in humans. Humans and many other animals have stereoscopic vision in which they see an object with two eyes at the same time, with both eyes set in the same plane. In humans, it is 140 degrees.

So, option C is the correct option.