Lesson: Vision and the Eye
In this lesson, we will learn how to calculate the power, near and far points, and accommodation of both normal eyes and those requiring correction.
Sample Question Videos
Worksheet: 22 Questions • 1 Video
A nearsighted man cannot see objects clearly beyond 20 cm from his eyes. How close must he stand to a mirror in order to see what he is doing when he shaves?
What is the power of the eye when viewing an object 50.0 cm away? The lens-to-retina distance is 2.00 cm.
The power of a physician’s eyes is 53.0 D while examining a patient. How far from her eyes is the object that is being examined? The lens-to-retina distance is 2.00 cm.