Ophthalmic device and method for operating ophthalmic device

A method for operating an ophthalmic device comprising

• an examination head configured to examine a subject eye, and
• a displacement mechanism configured to displace the examination head with respect to the subject eye, the method comprising:
• a drive controlling step of driving the displacement mechanism to displace the examination head to an examination position for the subject eye along an axis of tilt, wherein the axis of tilt is an axis obtained by tilting, around the subject eye, a reference axis that extends along an eye direction of the subject eye in parallel with a front-back direction serving as an operating distance direction of the examination head, outward away from a subject's nose;
• a distance detecting step of detecting a face distance which is a distance between the examination head and a face of the subject while the examination head is displaced along the axis of tilt by the displacement mechanism;
• and
• a retraction controlling step of driving the displacement mechanism to rotate the examination head in a direction of increasing the face distance around a rotation axis determined in advance when the face distance detected in the distance detecting step is less than a threshold determined in advance.