Novel cornea shaping lens and production method thereof

Abstract

The invention discloses a novel cornea shaping lens. The novel cornea shaping lens comprises a base arc area, wherein a reversing arc area is arranged at the outer side of the base arc area, a positioning arc area is arranged at the outer side of the reversing arc area, a peripheral arc area is arranged at the outer side of the positioning arc area, a guiding area is arranged at the op of the peripheral area, multiple circulation holes are formed in the peripheral arc area in a penetrating mode, a protective ring is fixedly arranged inside each circulation hole, and a reinforcement layer is arranged at front sides of the base arc area, the reversing arc area, the positioning arc area and the peripheral arc area. According to the novel cornea shaping lens, through the arrangement of the guiding area, after a user wears the lens, the guiding area can be conveniently attached to the upper portion of an eyeball of the user, therefore, an upper eyelid of the user is guided in a blink of theuser, and frictional force between the lens and the upper eyelid of the user is lowered; and in cooperation with the negative pressure action of the reversing arc area, skewing of the lens is avoided, and the correction effect of the lens is guaranteed.

Description

technical field [0001] The invention relates to the technical field of ophthalmic optics, in particular to a novel orthokeratology lens and a manufacturing method thereof. Background technique [0002] Orthokeratology lenses are a kind of contact lenses, which can reshape the front surface of the cornea, flatten the curvature of the cornea, and correct myopia. Ordinary contact lenses are usually worn during the day, while orthokeratology lenses are Wear it at night and remove it during the day, and the cornea will continue to be flattened after removal, so as to maintain clear vision. [0003] Orthokeratology lenses in the prior art still have some disadvantages in actual use. For example, in order to maintain the circulation of tears under the lens and discharge metabolites, thereby reducing protein precipitation, it needs to be set as a peripheral arc with raised edges. This results in a thicker lens as a whole, which will cause a more serious foreign body sensation in th...

AI Technical Summary

Problems solved by technology

[0003] Orthokeratology lenses in the prior art still have some disadvantages in actual use. For example, in order to maintain the circulation of tears under the lens and discharge metabolites, thereby reducing protein precipitation, it needs to be set as a peripheral arc with raised edges. This results in a thicker lens as a whole, which will cause a more serious foreign body sensation in the eyes when wearing it. At the same time, because the lens is thicker overall, when the user blinks, the upper eyelid will come into contact with the top of the orthokeratology lens and produce an impact on the orthokeratology lens. A certain push will cause a small amount of deviation of the orthokeratology lens, which will affect the correction effect of the orthokeratology lens

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