Oxygen permeable contact lenses

Abstract

An oxygen-permeable contact lens comprises a contact lens body, the contact lens body is provided with a convex-arc-shaped outer lens face and a concave-arc-shaped inner lens face located on the opposite side of the outer lens face, and the contact lens body is provided with at least one oxygen-permeable hole which linearly penetrates through the outer lens face and the inner lens face through laser. The air permeability and the oxygen permeation rate of the contact lens are increased by utilizing the oxygen permeation holes, so that when the contact lens is worn, eyeballs can obtain oxygen through the oxygen permeation holes in time, the circulation effect of tears and moisture is improved, uncomfortable symptoms such as eye dryness, stabbing pain or foreign body sensation are greatly reduced, and the wearing comfort is further improved; in addition, eye drops or artificial tears can be used, an eyeball wetting effect can be really achieved through the oxygen permeation holes, and the eye drops or the artificial tears have the convenience of relieving the eyeballs.

Description

Technical Field

[0001] This utility model relates to a contact lens, specifically an oxygen-permeable contact lens with millimeter-diameter oxygen-permeable holes perforated by laser. Background Technology

[0002] Existing contact lenses are prone to problems such as poor breathability, oxygen permeability, and lack of hydrophilicity. These issues can not only affect the eye's self-lubrication mechanism, leading to discomfort such as dryness, burning, and fatigue, but also prevent oxygen from reaching the eye. Since the cornea does not have blood vessels to supply oxygen and mainly relies on oxygen from the air to maintain its health, if the contact lenses worn have poor oxygen permeability, they can prevent oxygen from reaching the eye, increasing the risk of bacterial keratitis. In severe cases, it can even lead to corneal hypoxia, causing problems such as red eyes, blurred vision, and even corneal damage.

[0003] In view of this, based on the author's many years of experience in manufacturing, developing and designing related products, and after detailed design and careful evaluation for the above objectives, the author has finally come up with this utility model that is indeed practical. Utility Model Content

[0004] The technical problem this utility model aims to solve is to address the aforementioned deficiencies in the existing technology by providing an oxygen-permeable contact lens, comprising a contact lens having a convex arc-shaped outer lens surface and a concave arc-shaped inner lens surface located on the opposite side of the outer lens surface. The contact lens is provided with at least one oxygen-permeable hole through which a laser beam passes in a straight line through the outer lens surface and the inner lens surface, thereby increasing the breathability and oxygen permeability of the contact lens and improving the comfort of wearing the contact lens.

[0005] Preferably, the pore size of the oxygen permeable pore is in the range of 0.1 mm to 0.01 mm.

[0006] Preferably, the contact lens has a plurality of oxygen permeability holes extending through the outer and inner surfaces.

[0007] Preferably, the contact lens includes an optical region, a non-optical region, and an outer edge, with at least one of the oxygen-permeable pores formed in the non-optical region.

[0008] Preferably, the plurality of the vent holes are equidistantly formed in the optical area and the non-optical area.

[0009] Compared with the advantages of prior art, the contact lens of this invention utilizes a laser to form at least one oxygen permeability hole by directly penetrating the outer and inner lens surfaces. This allows the contact lens to instantly complete the formation of the oxygen permeability hole, avoiding multiple layers and processing steps, thus improving product yield. Furthermore, the oxygen permeability hole has an extremely small diameter and smooth cutting edges, making the oxygen permeability hole feel almost imperceptible and causing no invasive discomfort to the eye. This provides users with the convenience of self-wearing, thereby enhancing the industrial applicability of the product.

[0010] Furthermore, the oxygen permeability pores that run straight through the outer and inner surfaces of the contact lens can significantly improve the oxygen permeability of the contact lens, allowing the eye to receive oxygen as needed through the pores. This also increases the circulation of tears and moisture, greatly reducing discomfort such as dryness, stinging, or foreign body sensation, further enhancing wearing comfort and effectively reducing the risk of eye infections, ensuring wearing safety. Additionally, the use of eye drops or artificial tears can also effectively achieve a moisturizing effect on the eye through the oxygen permeability pores, providing convenient eye relief. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention.

[0012] Figure 2 This is a partially enlarged sectional view of the plan view of this utility model.

[0013] Figure 3 This is a flowchart illustrating the forming process of this utility model.

[0014] Figure 4 This is a schematic diagram of the laser through-hole operation of this utility model.

[0015] Figure 5 This is a schematic diagram of another embodiment of the present invention.

[0016] Figure 6 This is a schematic diagram of the breathable wearing feature of this utility model.

[0017] Figure 7 This is a schematic diagram illustrating the usage state of the eye drops or artificial tears of this utility model.

[0018] Symbol explanation:

[0019] 10: Contact lenses

[0020] 101:Optical area

[0021] 102:Non-optical area

[0022] 103: Outer edge

[0023] 11: External mirror

[0024] 12: Endoscopic surface

[0025] 13: Oxygen permeable pores

[0026] 20: Upper mold

[0027] 201: First Bowl Section

[0028] 202:convex arc surface

[0029] 21: Lower mold

[0030] 211: Second Bowl Section

[0031] 212: concave arc surface

[0032] 22: Forming chamber

[0033] 30: Polymer materials

[0034] 40: Laser equipment Detailed Implementation

[0035] To further understand and recognize the purpose, features, and effects of this utility model, the following is a detailed description in conjunction with the accompanying drawings:

[0036] First, please let Figure 1 , 2 As shown, an oxygen-permeable contact lens includes a contact lens 10. The contact lens 10 has a convex outer lens 11 and a concave inner lens 12 located on the opposite side of the outer lens 11. The contact lens 10 is provided with at least one oxygen permeability hole 13 through which a laser laser passes in a straight line through the outer lens 11 and the inner lens 12. The diameter of the oxygen permeability hole 13 is between 0.1 mm and 0.01 mm, thereby increasing the breathability and oxygen permeability of the contact lens 10 and improving the comfort of wearing the contact lens.

[0037] To further explain, then by Figure 3 , 4As shown, the contact lens 10 is formed by molding and solidifying an upper mold 20 and a lower mold 21. The upper mold 20 has a first cup portion 201, the outer wall of which forms a convex arc surface 202. The lower mold 21 has a second cup portion 211, the inner wall of which forms a concave arc surface 212. When the upper mold 20 and the lower mold 21 are molded together, a forming chamber 22 is formed between the first cup portion 201 and the second cup portion 211, and a polymer material 30 is then injected. The polymer material 30 is placed inside the molding chamber 22 and then cured by heating or light. After curing, the contact lens 10 can be removed by demolding. The contact lens 10 includes an optical area 101, a non-optical area 102, and an outer edge 103. Next, the contact lens 10 is perforated by a laser device 40, which uses a laser to penetrate the outer and inner lens surfaces 11 and 12 of the contact lens 10 in a straight line to form at least one oxygen permeability hole 13. Figure 1 As shown, in this embodiment, a plurality of oxygen permeability holes 13 are provided through the outer and inner lens surfaces 11 and 12 of the contact lens 10, wherein the oxygen permeability holes 13 are formed at least in the non-optical area 102; in addition, there are further... Figure 5 As shown, the vent holes 13 can also be formed at equal intervals in the optical area 101 and the non-optical area 102.

[0038] Through the structure of the above specific embodiments, the following benefits can be obtained: The contact lens 10 of this utility model uses a laser to linearly penetrate the outer lens 11 and the inner lens 12 to form at least one oxygen permeability hole 13, so that the contact lens 10 can complete the forming operation of the oxygen permeability hole 13 instantly, avoiding multiple layers and multiple processing, which helps to improve the product yield, and makes the diameter of the oxygen permeability hole 13 extremely small and the cutting edge smooth, so that the oxygen permeability hole 13 is barely noticeable and will not cause invasive discomfort to the eyeball, providing the convenience of self-wearing for users, thereby enhancing the industrial applicability of the product.

[0039] Furthermore, the oxygen permeability pore 13, which runs straight through the outer and inner lens surfaces 11 and 12, can significantly improve the oxygen permeability of the contact lens 10, allowing the eyeball to receive oxygen (such as oxygen) through the oxygen permeability pore 13 as needed. Figure 6 As shown), it increases the circulation of tears and moisture, significantly reducing discomfort such as dryness, stinging, or foreign body sensation in the eyes, further improving wearing comfort, and effectively reducing the risk of eye infections, ensuring wearing safety. Furthermore, the use of eye drops or artificial tears can also effectively achieve eye hydration through the oxygen permeability pores 13 (e.g., Figure 7 As shown in the image, it also offers the convenience of eye-soothing.

[0040] The above description is only a preferred embodiment of this utility model and should not be construed as limiting the scope of this utility model; that is, all equivalent changes and modifications made in accordance with the scope of the patent application of this utility model should still fall within the scope of this utility model patent.

Claims

1. An oxygen permeable contact lens, characterized in that, The present application relates to a contact lens, which comprises a convex outer lens surface and a concave inner lens surface, and a plurality of oxygen-permeable holes formed in the outer lens surface and the inner lens surface by laser beam, each of the oxygen-permeable holes having a diameter ranging from 0.1 mm to 0.01 mm, so as to increase the permeability and oxygen permeability of the contact lens and improve the wearing comfort of the contact lens.

2. The oxygen permeable contact lens of claim 1 wherein, The contact lens comprises an optical zone, a non-optical zone and an outer edge, and the plurality of oxygen-permeable holes are formed in the non-optical zone.

3. The oxygen permeable contact lens of claim 2, wherein, The plurality of oxygen-permeable holes are equidistantly formed in the optical zone and the non-optical zone.

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