Rob can see fine at long distances but now needs to hold a restaurant menu at 48.0 cm from his eyes in order to read the text clearly. Determine a prescription for the glasses he'd need (in Diopters) to be able to read at 23.0 cm from the eye. Note whether the lens should be thinner or thicker in the middle. Assume that the lenses rest 1.50 cm from the cornea surface