Why is reading a book only possible when looking directly at the printed page?

Question

Quizplus · Accepted Answer

When we read a book, the printed image in focus is projected onto the area of keenest vision which is called the fovea. This area has the highest concentration of cones, which are the photoreceptors that are responsible for color vision and visual acuity. Therefore, option C is correct. Additionally, peripheral photoreceptors are not stimulated during reading as we focus on the printed page, hence option A is correct as well. Hence, the correct answer is option E.

Why Is Reading a Book Only Possible When Looking Directly