At your annual eye exam, you told the eye doctor that you have no problem reading from a book that you are holding or seeing words and images on a computer screen. But, you have a lot of trouble seeing the numbers clearly on the clock that is on the back wall of your classroom, because you sit in the front of the class. Use what you learned in the lesson to describe the diagnosis you think your eye doctor will make and the kind of corrective lenses he will prescribe to improve your vision.