Opthalmic apparatus for measuring a refractive power of an eye to be examined

An ophthalmic apparatus for measuring a refractive power of an eye to be examined, the ophthalmic apparatus comprising:

• alignment means for detecting an alignment condition of the apparatus corresponding to an eye to be examined;
• refractive power temporary measuring means for measuring a temporary refractive power value after alignment of up-down/left-right directions is completed based on a detected result of said alignment means;
• variable means for varying an allowable condition of working distance based on a measured data by said refractive power temporary measuring means;
• detecting means for detecting a distance relation of the apparatus corresponding to the eye to be examined and detecting an alignment condition;
• and
• judging means for judging whether the eye to be examined is arranged within a range of allowable condition set by said variable means based on the detected result by said detecting means.

An ophthalmic apparatus for measuring a refractive power of an eye to be examined, the ophthalmic apparatus comprising:

• alignment detecting means for detecting an alignment condition of the apparatus corresponding to an eye to be examined;
• first refractive power measuring means for measuring the refractive power of the eye to be examined based on a detected result by said alignment detecting means;
• variable means for varying an allowable condition of working distance based on a measured result which is obtained by said first refractive power measuring means;
• working distance judging means for judging whether the eye to be examined is arranged within a range of allowable condition of working distance set by said variable means based on the detected result of said alignment detecting means;
• and
• second refractive power measuring means for measuring the refractive power of the eye to be examined based on the judged result by said judging means.