Question

Which of the following might be a factor in judging distances accurately for some people?

Answer 1

Out of the following choices, one reason a person may have a problem judging distances accurately is many people see clearly in the daytime, but not at nighttime. 

Answer 2

The one that might be a factor in judging distances accurately for some people is option A. Many people see clearly in the daytime but not at night.

This symptom is commonly called as nyctalopia. People who suffer from nyctalopia do not have the capabilities to adjust minimum amount of light and convert it to vision. This problem is often caused by lack of vitamin A.

Nyctalopia also known as night-blindness, is a condition making it difficult or impossible to see in relatively low light. It is a symptom of several eye diseases.