Question Video: Recalling the Point at Which Light Is Focused by an Eye with Normal Vision Science • Third Year of Preparatory School

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).