Ophthalmic apparatus

An ophthalmic apparatus comprising:

• a visual target indicating portion for indicating patterns of at least three directions each consisting of a plurality of parallel lines to be presented to an examinee;
• a visual target optical system for making variable a diopter of the pattern presented to the examinee;
• response inputting means for inputting a response of the examinee;
• and
• means for changing the intervals of the parallel lines;
• wherein a refractive power of an eye of the examinee is obtained from intervals of the parallel lines at the time when the examinee inputs a response thereof through said response inputting means at the limit of visual recognition of the pattern, the intervals of the parallel lines of which are changing.

An ophthalmic apparatus comprising:

• a visual target indicating portion for indicating patterns of at least three directions each consisting of a plurality of parallel lines to be presented to an examinee;
• a visual target optical system for making variable a diopter of the patterns presented to an examinee;
• means for changing the intervals of the parallel lines;
• and
• response inputting means for inputting a response of the examinee,
• wherein the visual acuity of the examinee is obtained on the basis of the pitches of the patterns at the time the examinee inputs a response through said response inputting means at the limit of visual recognition of the patterns.