| 摘要 |
<p>A method and a system are presented for adjusting a progressive lens relative to the frame of a patient's spectacles. The lens has power and distortions distributions and far and near vision zones and is selected inter alia in accordance with respective prescribed first and second values of the optical power required for the patient's eye at its reading and distance vision. A direction of a line of sight of the patient's eye at the reading vision, relative to the frame of the spectacles, is determined. The lens is positioned and oriented relative to the frame so as to ensure that the line of sight passes through the near vision zone of the progressive lens.</p> |
