Oxygen-permeable contact lenses

Abstract

To provide an oxygen-permeable contact lens which significantly reduces unpleasant symptoms such as dryness of the eyes, stinging pain, or foreign body sensation, improves wearing comfort, effectively reduces the risk of eye infection, ensures wearing safety, reliably moistens the eyes even when eye drops or artificial tears are used, and is convenient in that it relaxes the eyes. [Solution] The oxygen-permeable contact lens includes a contact lens 10, which has a front lens surface 11 presenting a convex arcuate surface, and a back lens surface 12 presenting a concave arcuate surface behind the front lens surface, and is provided with at least one oxygen-permeable hole 13 formed by a laser in a straight line through the front lens surface and the back lens surface. The oxygen-permeable hole is used to increase the breathability and oxygen permeability of the contact lens, so that when the contact lens is worn, oxygen is appropriately supplied to the eyeball through the oxygen-permeable hole, and the circulation effect of tears and moisture is increased.

Description

[Technical field]

[0001] The present invention relates to contact lenses, and more particularly to oxygen-permeable contact lenses having oxygen-permeable holes drilled with a millimeter-sized hole diameter by a laser. [Background technology]

[0002] Conventional contact lenses have problems such as poor breathability, poor oxygen permeability and insufficient hydrophilicity, which affect the self-lubrication mechanism of the eye, causing discomfort such as dry eyes, burning sensation and fatigue. Not only that, the cornea does not receive oxygen from blood vessels, but mainly relies on oxygen in the air to maintain its health. Therefore, if the oxygen permeability of the contact lenses worn is too low, the contact lenses will block oxygen from reaching the eyes, increasing the risk of the eyeball being infected with bacterial keratitis, and in severe cases, even causing corneal oxygen deficiency, which will lead to problems such as red eyes, blurred vision and even corneal damage. Taking this into consideration, the inventor has developed the present practical invention after detailed design and rigorous evaluation with respect to the above-mentioned goal, based on his many years of experience in the manufacture, development, and design of products in this field. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to solve the above-mentioned shortcomings in the prior art, and to provide an oxygen-permeable contact lens, including a contact lens, the contact lens having a front lens surface presenting a convex arcuate surface, and a back lens surface presenting a concave arcuate surface behind the front lens surface, the contact lens being provided with at least one oxygen-permeable hole linearly penetrating the front lens surface and the back lens surface by a laser, the oxygen-permeable hole being used to increase the breathability and oxygen permeability of the contact lens, and improving the comfort of wearing the contact lens.

[0004] The hole diameter of the oxygen permeable hole is preferably in the range of 0.1 mm to 0.01 mm.

[0005] The contact lens is preferably provided with a plurality of the oxygen permeable holes penetrating the front lens surface and the back lens surface.

[0006] Preferably, the contact lens includes an optical zone, a non-optical zone, and an outer edge, and a plurality of the oxygen permeable holes are molded into at least the non-optical zone.

[0007] The plurality of oxygen permeable holes are preferably molded at equal intervals in the optical zone and the non-optical zone.

[0008] Compared with the effects of the prior art, in the contact lens of the present invention, a laser is used to linearly penetrate the front lens surface and the back lens surface to form at least one oxygen permeable hole, which instantly completes the molding process of the oxygen permeable hole in the contact lens, avoiding multiple layers and multiple processes and helping to improve product yields; in addition, the hole diameter of the oxygen permeable hole is extremely small, the cutting edge is flat, and the feel of the oxygen permeable hole is extremely small, so as not to cause any invasive discomfort to the eyeball, providing the convenience of the user to wear it themselves, and thus enhancing the industrial applicability of the product.

[0009] Furthermore, the oxygen-permeable holes that linearly penetrate the front and back lens surfaces can greatly improve the oxygen permeability of the contact lens, allowing oxygen to be appropriately supplied to the eyeball through the oxygen-permeable holes, and increasing the circulation effect of tears and moisture, thereby greatly reducing unpleasant symptoms such as dry eyes, stinging pain, and foreign body sensation, thereby improving wearing comfort, effectively reducing the risk of ocular infection, and ensuring wearing safety. Furthermore, the use of eye drops or artificial tears can reliably moisten the eyeball through the oxygen-permeable holes, providing the convenience of relaxing the eyeball. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a three-dimensional view of the present invention. [Diagram 2] FIG. 2 is an enlarged partial cross-sectional view of the plan view of the present invention. [Diagram 3] FIG. 3 is a flow chart of the molding process of the present invention. [Figure 4] FIG. 4 is a schematic diagram of the laser drilling process of the present invention. [Diagram 5] FIG. 5 is a schematic diagram of another embodiment of the present invention. [Figure 6] FIG. 6 is a schematic diagram showing the good breathability of the present invention when worn. [Figure 7] FIG. 7 is a schematic diagram showing the state when applying eye drops or artificial tears to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] In order to make the objects, features and advantages of the present invention more clearly understood and appreciated, the following detailed description will be given with reference to the drawings in [Brief Description of the Drawings]. First, as shown in Figures 1 and 2, the oxygen-permeable contact lens includes a contact lens 10, which has a front lens surface 11 presenting a convex arcuate surface, and a back lens surface 12 presenting a concave arcuate surface behind the front lens surface 11, and at least one oxygen-permeable hole 13 is formed in the contact lens 10 by a laser so as to linearly penetrate the front lens surface 11 and the back lens surface 12, and the hole diameter dimension of the oxygen-permeable hole 13 is in the range of 0.1 mm to 0.01 mm, thereby increasing the breathability and oxygen permeability of the contact lens 10 and improving the comfort of wearing the contact lens.

[0012] 3 and 4, the contact lens 10 is formed by clamping the upper mold 20 and the lower mold 21 together to solidify, the upper mold 20 has a first bowl-shaped portion 201, the outer wall surface of the first bowl-shaped portion 201 is a convex arc surface 202, and the lower mold 21 has a second bowl-shaped portion 211, the inner wall surface of the second bowl-shaped portion 211 is a concave arc surface 212. When the upper mold 20 and the lower mold 21 are clamped together, a molding chamber 22 is formed between the first bowl-shaped portion 201 and the second bowl-shaped portion 211. Then, a polymer material 30 is poured into the molding chamber 22, and the polymer material 30 in the molding chamber is solidified by heating or irradiating light. After the polymer material 30 is molded and solidified, the mold can be opened to take out the contact lens 10. 10 includes an optical zone 101, a non-optical zone 102, and an outer edge 103, and a laser device 40 is used to perform drilling on the contact lens 10, and at least one oxygen permeable hole 13 is formed linearly through the front lens surface 11 and the back lens surface 12 of the contact lens 10 using a laser. Also, as shown in FIG. 1, the contact lens 10 of this embodiment is formed with a plurality of oxygen permeable holes 13 penetrating the front lens surface 11 and the back lens surface 12, where the oxygen permeable hole 13 is molded at least in the non-optical zone 102, and as shown in FIG. 5, the oxygen permeable holes 13 can also be molded at equal intervals in the optical zone 101 and the non-optical zone 102.

[0013] The structure of the above specific embodiment can provide the following effects: In the contact lens 10 of the present invention, at least one oxygen permeable hole 13 is formed by linearly penetrating the front lens surface 11 and the back lens surface 12 using a laser, so that the molding process of the oxygen permeable hole 13 is completed instantly on the contact lens 10, which avoids multiple layers and multiple processes and helps to improve the product yield; the hole diameter of the oxygen permeable hole 13 is extremely small, the cutting edge is flat, the touch of the oxygen permeable hole 13 is extremely small, and the discomfort of the eyeball is not caused, and the user can wear it by himself / herself, so that the industrial applicability of the product is improved.

[0014] Furthermore, the oxygen permeability hole 13 that linearly penetrates the front and back lens surfaces can greatly improve the oxygen permeability of the contact lens 10, allowing oxygen to be appropriately supplied to the eyeball through the oxygen permeability hole 13 (as shown in FIG. 6), and increasing the circulation effect of tears and moisture, greatly reducing unpleasant symptoms such as dry eyes, stinging pain, and foreign body sensation, further improving wearing comfort, effectively reducing the risk of ocular infection, ensuring wearing safety, and further allowing the use of eye drops or artificial tears to reliably moisten the eyeball through the oxygen permeability hole 13 (as shown in FIG. 7), providing the convenience of relaxing the eyeball.

[0015] The above is merely one embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, any changes or modifications made within the scope of the claims of the present invention shall also fall within the scope of the present invention. [Explanation of symbols]

[0016] 10. Contact Lenses 101 Optical Zone 102 Nan ​​Optical Zone 103 Outside Edge 11 Front lens surface 12 Back lens surface 13 Oxygen permeation hole 20 Upper mold 201 First bowl-shaped part 202 Convex arc surface 21 Lower mold 211 Second bowl-shaped part 212 Concave Arc Surface 22 Molding chamber 30 Polymer Materials 40 Laser Device

Claims

1. 1. An oxygen permeable contact lens, comprising: The contact lens has a front lens surface presenting a convex arcuate surface, and a back lens surface presenting a concave arcuate surface behind the front lens surface, and at least one oxygen permeable hole is formed in the contact lens by a laser linearly penetrating the front lens surface and the back lens surface, and the oxygen permeable hole is used to increase the breathability and oxygen permeability of the contact lens and improve the comfort of wearing the contact lens.This is an oxygen permeable contact lens.

2. 2. The oxygen-permeable contact lens according to claim 1, wherein the diameter of said oxygen-permeable hole is in the range of 0.1 mm to 0.01 mm.

3. 2. The oxygen-permeable contact lens according to claim 1, wherein the contact lens is provided with a plurality of said oxygen-permeable holes penetrating the front lens surface and the back lens surface.

4. 4. The oxygen permeable contact lens of claim 3, wherein said contact lens includes an optical zone, a non-optical zone, and an outer edge, and wherein a plurality of said oxygen permeable holes are molded into at least said non-optical zone.

5. 5. The oxygen-permeable contact lens according to claim 4, wherein a plurality of said oxygen-permeable holes are molded at equal intervals in said optical zone and said non-optical zone.

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