To provide a method and a meter to measure refracting power distribution of a subject eye by irradiating thin light flux to the subject eye to measure light reflected by the eyeground through a specific pattern.

The refracting power meter has an irradiating optical system with an aperture for light irradiating thin light flux to the eyeground and the cornea of the subject eye and a light receiving optical system to guide light to a light receiving element through a specific pattern (multiple ring pattern, or the like) placed on a position corresponding to the cornea. Refracting power is calculated by position on the cornea from measurement values detected by the light receiving element and the state of refracting power distribution on the cornea is displayed in the refracting power meter. The irradiating light optical system has a mechanism movable corresponding to refracting power of the subject eye.