Calculate the power of the eye when viewing objects at the greatest and smallest distances possible with normal vision, assuming a lens-to-retina distance of 2.00 cm (a typical value).

Strategy

For clear vision, the image must be on the retina, and so d_i = 2.00 cm here. For distant vision, d_o ≈ ∞, and for close vision, d_o = 25.0 cm, as discussed earlier. The equation as written just above, can be used directly to solve for P in both cases, since we know d_i and d_o. Power has units of diopters, where 1 D = 1/m, and so we should express all distances in meters.

Transcribed Image Text:

_ P = √ √ √ + ₁ do 1