An ophthalmic apparatus and a method for calculating internal refractive power distribution of an eye of an examinee, which allow easily evaluating refractive power distribution of a crystalline lens, an intraocular lens and the like. The ophthalmic apparatus has an input device (73) for inputting respective measurement data on corneal refractive power distribution and whole refractive power distribution of the eye, the respective distribution referring to a reference axis (L1), and a calculation device (101) for obtaining the internal refractive power distribution of the eye referring to the reference axis based on the inputted respective measurement data, obtaining a prism component in the internal refractive power distribution with respect to the reference axis, and obtaining internal refractive power distribution of the eye where the prism component is removed.
