On examination, an optometrist finds that a patient who formerly had good vision now has a near point of 0.5 m and likes to read at a distance of 0.25 m. What is the patients accommodation and what strength reading glasses should be prescribed?

Problem 102. My wife Margie has lost most of her accommodation. She has a nearpoint of 130 cm and would like to read as close as 40 cm from her eyes. A) What power reading glasses should Margie use? Assume the lenses in the glasses are 2 cm from the eye. B) What is Margie's farpoint while wearing reading glasses?

One of the inevitable consequences of aging is a decrease in the flexibility of the lens. This leads to the farsighted condition called presbyopia (elder eye). Almost every aging human will experience it to some extent. However, for the myopic person, at some point, it is possible that far vision will be limited by a subpar far point and near vision will be hampered by an expanding near point. One solution is to wear bifocal lenses that are diverging in the upper half to correct the nearsightedness and converging in the lower half to correct the farsightedness. Suppose one such individual asks for your help. The patient complains that he can't see far enough to safely drive (his far point is 120 cm) and he can't read the font of his smart phone without holding it beyond arm's length (his near point is 81 cm)! Prescribe the bifocals that will correct the visual issues for your patient. 1)Calculate the power of the upper half of the bifocals. (Express your answer to three significant…

One of the inevitable consequences of aging is a decrease in the flexibility of the lens. This leads to the farsighted condition called presbyopia (elder eye). Almost every aging human will experience it to some extent. However, for the myopic person, at some point, it is possible that far vision will be limited by a subpar far point and near vision will be hampered by an expanding near point. One solution is to wear bifocal lenses that are diverging in the upper half to correct the nearsightedness and converging in the lower half to correct the farsightedness. Suppose one such individual asks for your help. The patient complains that he can't see far enough to safely drive (his far point is 132 cm) and he can't read the font of his smart phone without holding it beyond arm's length (his near point is 89 cm)! Prescribe the bifocals that will correct the visual issues for your patient. 1) Calculate the power of the upper half of the bifocals. (Express your answer to three significant…