1. The problem statement, all variables and given/known data A farsighted boy has a near point at 2.3 m and requires eyeglasses to correct his vision. Corrective lenses are available in increments in power of 0.25 diopters. The eyeglasses should have lenses of the lowest power for which the near point is no further than 25 cm. The correct choice of lens power for eyeglasses, in diopters, is: 2. Relevant equations 1/s + 1/s' = 1/f 1/f = P 3. The attempt at a solution I keep getting a value of 3.57 diopters, however, the correct answer is 3.75.