| 摘要 |
PURPOSE: A hard contact lens is provided to smoothly circulate tear and to supply oxygenation by forming a fluid circuit portion to be contiguous to an optical portion while maintaining soft wearing sensation. CONSTITUTION: A hard contact lens comprises an optical portion, a fluid circuit portion(20), and an edge portion(40). The optical portion is formed on the center of the hard contact lens. The fluid circuit portion is formed at the exterior of the optical portion. The fluid circuit portion forms a plurality of groove portions of a ring shape and a plurality of penetration holes. The edge portion is separated from the fluid circuit portion having a constant distance. The fluid circuit portion and the edge portion are connected by a connection portion.
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