Video Transcript
Which of the following is the term
for the point at which light is focused by an eye with normal vision? (A) The lens, (B) the retina, (C)
the eyeball.
An eye with normal vision has the
overall shape of a sphere. This whole structure is called the
eyeball. That’s answer option (C). When light enters a healthy eye
though, it’s focused at a particular spot. The lens of the eye helps to focus
incoming rays of light at the back of the eye. This whole surface along the inside
of the back of the eye is called the retina. When light rays are focused on the
retina, the object being looked at is clearly seen. We choose answer option (B).
