Seeing and the Eye Answers

After reading a book, Julio looks out of the window and sees clouds in the distance. Which change allows Julio to clearly see the clouds after looking at his book?

Which is responsible for carrying the signals for vision from the eye to the brain?

The lens of the eye becomes stiffer and less flexible with age. How does this change most affect a person’s vision?

Which best describes the role of cones in seeing an object?

A company is creating an advertisement for colored contact lenses. In the ad, the company wants to include the phrase "Each contact lens is like a second ____.” Which part of the eye would be most accurate in completing the phrase?

The results of Huy’s eye exam show that he is nearsighted. Which explanation should Huy expect to hear?

Carlotta notices that the words of a book are blurry, but a sign across the road is not. What might correct Carlotta’s vision?

Which are found in the retina?

What is the cause of astigmatism?

John often sees squiggly lines when he looks at a bright sky or white paper. His doctor says that they are called eye floaters, which are small bits of protein in the fluid that fills the eyeball.