| 摘要 |
An ophthalmic apparatus exhibiting a first position and a second position related by a rotation of 180° about a longitudinal axis. Automatic detection of the position is preferably provided, and the results of the detection are communicated to a computing unit portion of the ophthalmic apparatus. The ophthalmic apparatus exhibits: a first formation for receiving a user's head in the first position, which is in one embodiment a generally curved formation approximating the shape of the user's lower forehead preferably with an indent portion for receiving the user's nose when the ophthalmic apparatus in the second position; and a second formation for receiving a user's head in the second position, which is in one embodiment a generally curved formation approximating the shape of the user's lower forehead preferably with an indent portion for receiving the user's nose when the ophthalmic apparatus in the first position.
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