| 摘要 |
<p>BIFOCAL SOFT CONTACT LENS A soft, multi focal contact lens of the segmented type intended to translate vertically between the near-vision and distance-vision modes, characterized in that the superior portion of the lens is equiangularly truncated from points on either side of the vertical axis at the apex of the lens to points on each respective side proximal the horizontal axis of the lens.</p> |
