| 摘要 |
<p>A contact lens case (10) containing design asymmetries sufficient to allow the ready distinction of the left and right wells by touch alone, but also containing optical asymmetries sufficient to aid in the distinction of left and right wells under poor vision conditions. Asymmetries include large tactile asymmetries, such as curvature (52, 54) of the case; small tactile asymmetries, such as raised symbols (416, 418); and grossly visible asymmetries, such as different well lid designs (312, 314). The present invention also provides structural enhancements that improve the durability of the case and facilitate lens removal and insertion. Furthermore, the cases are manufactured in a variety of colors and designs, allowing the wearer to customize the cases in order to readily distinguish between different cases and, consequently, between different pairs of lenses.</p> |
