Contact lens

A contact lens and eyeball technology, applied in glasses/goggles, optics, instruments, etc., can solve the problems of fragile structure, lack of consideration of tear foreign body sensation, and difficulty in wearing

Inactive Publication Date: 2007-11-28
许维斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the aforementioned cases, the structural design is hollow, with a groove design or a strip shape. There are concerns about increased cost, difficulty in wearing, and fragile structure in the design, plus the lack of consideration of the effect of tears and foreign body sensation. The problems that will occur during actual wearing, such as the generation of the rim, cause many peripheral designs to fail to achieve the ideal situation, and there will be various problems, so that they cannot be actually used in the market.
However, current contact lenses still cause many problems such as eye irritation or discomfort caused by dryness, insufficient lubrication or mechanical friction, and more serious cases can cause visual impairment

Method used

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Embodiment Construction

[0025] In order to fully understand the purpose, features and effects of the present invention, the present invention will be described in detail through the following specific embodiments, and in conjunction with the accompanying drawings, as follows:

[0026] FIG. 1 and FIG. 2 are respectively a front view and a perspective view of a preferred embodiment of a contact lens of the present invention. As shown in the figure, a contact lens of the present invention may include: a main body 1 and an arc pattern 21 . Generally speaking, the diameter of the human eye is about 21 mm to 26 mm, the diameter of the cornea is about 11 mm to 12 mm, and the distance between the superior rectus muscle and the inferior rectus muscle is about 25 mm. The distance between the rectus muscle and the lateral rectus muscle is about 24mm, and the contact lenses commonly used in the market today, for hard contact lenses, have a diameter of about 8 mm to 11 mm, and for soft contact lenses , and its di...

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PUM

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Abstract

The invention relates to a contact lens, comprising a main body. The main body has a periphery, which has the shape with at least a pattern. The pattern can be arc, angle, square, angle after chamfering or square after chambering and so on. By the pattern wetness index of contact lens can be increased and foreign body sensation can be decreased. Comfort and stability are increased. The biggest width of contact lens is smaller than an upper-limit value so that it can not be limited by peripheral muscle of eyeball when the contact lens covers eyeball.

Description

technical field [0001] The invention relates to a contact lens, especially the peripheral edge of the contact lens has at least one pattern shape. Background technique [0002] For a long time, the damage and degeneration of eyesight has troubled people for a long time, especially after the industrial revolution and information revolution, people's life has changed from agricultural society to industrial and commercial society, and now it has come to the information age. With the emergence of information explosion , modern people have to spend more time and energy to receive more information. In this case, the role played by the eyes is even more important, and its importance is more than ever. However, due to the increased workload, the rate of visual impairment of modern people has increased, and the degree of visual atrophy has also continued to increase. There is an urgent need for various technologies that help improve vision. Among them, wearing glasses can be said t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/04
Inventor 许维斌
Owner 许维斌
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