TWI500993B - The use of chromatic aberration to control myopia and both the beauty of contact lenses - Google Patents

Description

Using chromatic aberrations to control myopia and combine cosmetic lenses

The present invention relates to an optical lens, and more particularly to a contact lens.

Colored contact lenses can make the wearer's appearance stand out for a special sense of style, so it has been well received by the public. Common colored contact lenses are the natural appearance of imitation irises, from which the lines are lined up with colorful shapes and lines to help the eyes look more natural. Usually colored glasses are divided into visible colors, enhanced colors or opaque colors. The reinforcement method can make the appearance of the eyes different from the normal state. However, these colored contact lenses have so far appealed to aesthetics, allowing the wearer to have different iris edges and produce special effects on the facial features.

As shown in FIG. 1 , when the eye 4 of a myopic patient is not wearing the myopia lens, the distant scene is imaged before the retina 41 , and FIG. 2 is when the eye 4 of the myopia patient wears the myopia lens 5 , and the distant scene passes through the myopia . The lens 5 is adjusted to be imaged on the retina 41. Wherein, the existing myopia lens 5 is a spherical concave lens, and the distant scene is imaged on the retina 41 via the central region of the near vision lens 5 near the optical axis, and the distant scene is separated by the spherical aberration due to the peripheral region far from the optical axis. The image is imaged behind the retina 41, so that in order to clearly visualize the distant scene on the retina 41, the eye 4 adjusts to contract the ciliary muscle 42 to make the lens 43 more convex, thereby forming a stronger refraction. The distant scene can be imaged on the retina 41 by imaging the peripheral region of the myopic lens 5. But at this time, the imaging through the central area of the myopic lens 5 is Will move to the retina 41 to form a blurred visual image. If the eye 4 is in such a state of regulation for a long period of time, the sputum of the ciliary muscle 42 may also stimulate the elongation of the eye axis, thereby causing the deepening of myopia.

Accordingly, it is an object of the present invention to provide a contact lens that utilizes chromatic aberration to control myopia and combines beauty.

Thus, the contact lens of the present invention which utilizes chromatic aberration to control myopia and combines beauty includes a central region having a fixed focus and a peripheral region extending outward from the central region and dyed and transparent. When an incident light penetrates a color-dyed peripheral region, the peripheral region passes only light of the same wavelength range as the dyed color, and the different wavelengths of the transmitted light have different refractive indices, and thus The peripheral area of the color controls the focus position of the incident light.

The effect of the present invention is that when a myopic patient wears the contact lens, the distant scene is imaged on the retina via the central area of the contact lens, and the distant scene passes through the peripheral area farther from the optical axis, and because of the surrounding area The chromatic aberration formed by the dyed color is imaged on the front or the front of the retina. Therefore, in order to clearly visualize the distant scene on the retina, the eye adjusts, that is, relaxes the ciliary muscle and makes the curvature of the lens smaller, thereby allowing The imaging of the distant scene through the peripheral region of the optical lens can fall on the retina. The above eye adjustment method can prevent the ciliary muscle from stimulating the elongation of the eye axis in a tight state, thereby causing deepening of myopia.

The foregoing and other technical content, features and effects of the present invention are The detailed description of the two preferred embodiments with reference to the drawings will be clearly described below.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 3, a first preferred embodiment of the present invention utilizes chromatic aberration to control myopia and combines cosmetic contact lenses, comprising a central region 1 having a fixed focus, an outwardly extending from the central region 1 and stained and A light transmissive peripheral zone 2, and a color printing zone 3 extending outwardly from the peripheral zone 2.

The contact lens is made of a copolymer material obtained by reacting Hydroxy Ethyl Meth Acrylate (HEMA) and Meth Acrylic Acid (MAA). The contact lens has a diopter of -3.00 D, a diameter of 14.2 mm, a lens base curve of 8.6 mm, and a center thickness of 0.08 mm.

The central area 1 is a circular area composed of a visual center of the contact lens and having a diameter of 3.5 ± 1.5 mm. This embodiment is a circular area having a diameter of 3.5 mm and a transmittance of more than 80%. Preferably, the central zone 1 has a transmittance greater than 90%.

The outer edge of the peripheral zone 2 is concentric and has a distance of 6.0 mm from the visual center of the contact lens, and the transmittance of the peripheral zone 2 is greater than 30%.

The peripheral zone 2 is purple or blue via the dyed color, and the dye used to dye the peripheral zone 2 can be selected from direct dyestuffs, reactive dyestuffs, and vat dyestuffs. ), azoic dyestuffs, basic dyestuffs, acid dyestuffs, disperse dyes (disperse) Dyestuffs) and any combination of several dyes described above. Preferably, the dye is a purple and blue dye approved by the U.S. Food and Drug Administration, and may be selected from the group consisting of D&C violet NO. 2 and Reactive Blue Dye No. 21 (CIReacitve Blue). 21 (CAS Reg. NO. 73049-92-0)), Reactive Blue Dye No. 19 (CI Reacitve Blue 19 (CAS Reg. NO. 2580-78-1)), Reactive Blue Dye No. 4 (CIReacitve Blue 4 ( CAS Reg.NO.4499-01-8)), Reactive Blue Dye No. 163 (CIReacitve Blue 163 (CAS Reg. NO. 72847-56-4)), Reactive Blue Dye No. 69 (CIReacitve Blue 69 (CAS Reg) .NO.70209-99-3)) and Reactive dye Blue 246 (CI Reactive dye Blue 246).

The outer edge of the color printing zone 3 is concentric and has a distance of 13.5 mm from the visual center of the contact lens, and the color printing zone 3 has a transmittance of less than 50%. Preferably, the color printing zone 3 has a transmittance of less than 30%.

The pigment used in the color printing zone 3 can be formulated according to the color of the iris of the eye. The pigment may be selected from [phthalocyaninato(2-)]copper (CAS Reg. NO. 147-14-8), carbazole violet (pigment violet 23) ( CAS Reg. NO. 6358-30-1, colour index NO.51319)), chromium oxide green (chromic oxide (CAS Reg. NO. 1308-38-9, colour index NO. 77288)), Chromium-cobalt-alumium oxide (pigment blue 36) (CAS Reg. NO. 68187-11-1, colour index NO.77343), phthalocyanine green (CAS Reg.NO) .1328-53-6,colour index NO.74260)), iron oxides (CAS Reg.NO.1332-37-2, colour index NO.77491), Titanium dioxide (CAS Reg. No. 13463-67-7, colour index NO. 77891), mica-based pearlescent pigment, and any combination of the above.

The color printing zone 3 has a plurality of void regions 31 surrounding the peripheral zone 2. Each of the void regions 31 has an irregular shape and an area of less than 1.0 mm ² . The void regions 31 are sequentially arranged in a direction away from the peripheral region 2 into a plurality of annular bands, and the closer to the annular band of the peripheral region 2, the more the void regions 31 are. The area ratio of the total area of the void regions 31 to the color printing zone 3 is less than 0.5. Preferably, the area of each of the void regions 31 is less than 0.1 mm ² , and the ratio of the total area of the void regions 31 to the area of the color printing region 3 is less than 0.2.

Wherein, when an incident light penetrates the peripheral region 2, the peripheral region 2 passes only light of the same wavelength segment as the blue or violet dye, and the transmitted light of the wavelength segment has a higher refractive index, thus The equivalent diopter of the peripheral region 2 in combination with chromatic aberration is greater than the diopter of the central region 1.

Referring to FIG. 4, when the eye 4 of a myopic patient wears the contact lens and is looking far away, the distant scene is imaged on the fovea of the retina 41 via the central region 1 of the contact lens, and the distant scene passes the distance. The peripheral region 2 having a farther optical axis and being imaged in front of the retina 41 because the equivalent diopter of the peripheral region 2 is larger than the diopter of the central region 1, so that the eye 4 is for imaging the distant scene on the retina 41 in order to clearly Adjustments are made to relax the ciliary muscle 42 to reduce the curvature of the lens 43 to form a weaker refraction, allowing the distant scene to fall onto the retina 41 via imaging of the peripheral region 2 of the contact lens. In addition, the color printing area 3 is used to block light due to low transmittance, and the distant scene is imaged on the screen due to spherical aberration. After the film 41, and the color printing zone 3 is reflected by the light, the color of the iridescence of the eye 4 can be changed. The above eye 4 adjustment mode can avoid the tension of the ciliary muscle 42 in a tight state, thereby stimulating the elongation of the eye axis, thereby causing deepening of myopia and achieving a cosmetic effect.

Referring to FIG. 5, a second preferred embodiment of the present invention utilizes chromatic aberration to control myopia and combines cosmetic contact lenses, including a central region 1 having a fixed focus, and a region extending outwardly from the central region 1 and The peripheral zone 2 has different dyeing depths and can transmit light, and the transmittance is gradually reduced from 80% of the adjacent central zone 1 to the edge region of the lens to 10%.

The contact lens is made of a copolymer material obtained by reacting Hydroxy Ethyl Meth Acrylate (HEMA) and Meth Acrylic Acid (MAA). The contact lens has a diopter of -3.00 D, a diameter of 14.2 mm, a lens base curve of 8.6 mm, and a center thickness of 0.08 mm.

The central area 1 is a circular area composed of a visual center of the contact lens and having a diameter of 3.5 mm and a transmittance of more than 80%. Preferably, the central zone 1 has a transmittance greater than 90%.

The outer edge of the peripheral zone 2 is concentric and is 13.5 mm from the visual center of the contact lens. Using the spin-casting method, the centrifugal force gradually throws the dye toward the edge of the lens, so that the peripheral region reaches the cosmetic effect of the progressive dyeing appearance (as shown in FIG. 5), and the transmittance of the peripheral region 2 is everywhere. The further the distance from the center of the contact lens is gradually smaller, the change is from 80% transmittance near the central area 1 to 10% transmittance at the edge of the lens.

The peripheral zone 2 is purple or blue via the dyed color, and the dye used to dye the peripheral zone 2 can be selected from direct dyestuffs, reactive dyestuffs, and vat dyestuffs. ), azoic dyestuffs, basic dyestuffs, acid dyestuffs, disperse dyestuffs, and any combination of the above. Preferably, the dye is selected from the group consisting of purple and blue dyes approved by the U.S. Food and Drug Administration, and the dyes may be selected from the group consisting of D&C violet NO. 2 and Reactive Blue Dye No. 21. (CIReacitve Blue 21 (CAS Reg. NO. 73049-92-0)), Reactive Blue Dye No. 19 (CIReacitve Blue 19 (CAS Reg. NO. 2580-78-1)), Reactive Blue Dye No. 4 (CI Reacitve Blue 4 (CAS Reg. NO. 4499-01-8)), Reactive Blue Dye No. 163 (CI Reacitve Blue 163 (CAS Reg. NO. 72847-56-4)), Reactive Blue Dye No. 69 (CIReacitve Blue 69 (CAS Reg. NO. 70209-99-3)) and Reactive dye Blue 246 (CI Reactive dye Blue 246).

Referring to FIG. 5, when the eye 4 of a myopic patient wears the contact lens and is looking far away, the distant scene is imaged on the fovea of the retina 41 via the central region 1 of the contact lens, and the distant scene is compared with the distance from the optical axis. The far peripheral zone 2 is formed in front of the retina 41 because the equivalent diopter of the peripheral zone 2 is larger than the diopter of the central zone 1, so that the eye 4 is made to clearly image the distant scene on the retina 41. The adjustment, i.e., relaxation of the ciliary muscle 42, reduces the curvature of the lens 43 to form a weaker refraction, allowing the distant scene to fall onto the retina 41 via imaging of the peripheral region 2 of the contact lens. In addition, the periphery of the peripheral zone 2 is used for small transmittance. To prevent the distant scene from being imaged behind the retina 42 due to spherical aberration. The above adjustment of the eye 4 can avoid the tension of the ciliary muscle 42 in a tight state, thereby stimulating the elongation of the eye axis, thereby causing the deepening of myopia.

In summary, the present invention utilizes chromatic aberration to control myopia and combines cosmetic contact lenses, wherein the peripheral region 2 of the contact lens has a higher refractive index than the central region 1 due to its blue or purple transmitted light. The average refractive index of the transmitted light has a large deflection angle. Therefore, the central region 1 and the peripheral region 2 of the contact lens have different diopter due to chromatic aberration, so that the distant scene is imaged on the fovea of the retina 41 via the central region 1 of the contact lens, and the distant scene passes through the distance optical axis. The far peripheral zone 2 is imaged in front of the retina 41 because the equivalent diopter of the peripheral zone 2 is greater than the diopter of the central zone 1. Therefore, in order to clearly visualize the distant scene on the retina 41, the eye 4 adjusts to relax the ciliary muscle 42 to make the curvature of the lens 43 smaller, thereby forming a weaker refraction, allowing the distant scene to pass through the invisible shape. The imaging of the peripheral region 2 of the glasses can fall on the retina 41. The eye 4 adjustment mode can avoid the tension of the ciliary muscle 42 in a tight state, thereby stimulating the elongation of the eye axis, thereby causing the deepening of the myopia, and by using the spin-casting method, the dye is gradually thrown by the centrifugal force. The purpose of the present invention can be achieved by making the peripheral region reach the cosmetic effect of the gradation dyeing appearance on the edge of the lens.

It is worth mentioning that for different wavelengths of light, that is, different colors of light, there are different phase velocities in a medium, causing the refractive index of the medium to change. Therefore, when seven different colors of light are respectively focused on different places via a lens, chromatic aberration is caused. However, seven different colors of light when Among them, the shorter wavelength blue and violet light have a higher refractive index than the longer wavelength red light, and the refractive index thereof is also higher than the average refractive index of the white light, that is, a larger deflection angle after passing through the lens. Therefore, the present invention applies the chromatic aberration to a contact lens for controlling myopia, and allows the transmitted light to be focused on the front of the retina to effectively prevent the deepening of myopia.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

1‧‧‧Central District

2‧‧‧The surrounding area

3‧‧‧Color printing area

31‧‧‧Void area

4‧‧‧ eyes

41‧‧‧Retina

42‧‧‧Ciliary muscle

43‧‧‧ lens

1 is a schematic view showing an eye refractive abnormality of a myopic patient; FIG. 2 is a schematic view showing that the eye of the myopic patient corrects its refractive error via a myopic lens; FIG. 3 is a view of the present invention using chromatic aberration to control myopia A front view of a first preferred embodiment of a cosmetic contact lens; and FIG. 4 is a schematic view of the first preferred embodiment illustrating the eye of the myopic patient being corrected by the first preferred embodiment. 5 is a front view of a second preferred embodiment of the present invention using a chromatic aberration to control myopia and a cosmetic contact lens; and FIG. 6 is a schematic view of the second preferred embodiment, It is indicated that the eye of the myopic patient corrects its refractive abnormality via the second preferred embodiment.

1‧‧‧Central District

2‧‧‧The surrounding area

3‧‧‧Color printing area

31‧‧‧Void area

Claims (7)

A contact lens that utilizes chromatic aberration to control myopia and combines beauty, comprising a central region having a fixed focus and a light-extending and centrally colored one of purple and blue after being dyed a peripheral region, wherein the central region is a circular region having a diameter of 4.0±2.0 mm with the visual center of the contact lens as an origin, and the transmittance of the central region is greater than 80% when an incident light is worn When passing through the peripheral region, the peripheral region passes only light of the same wavelength range as the blue or violet dye, and the transmitted light of the wavelength band has a higher refractive index, thus causing the peripheral region to combine with the chromatic aberration. The equivalent diopter is greater than the diopter of the central region. The contact lens for controlling myopia and combining beauty using chromatic aberration according to claim 1 of the patent application, further comprising a color printing area extending outward from the peripheral area, wherein an outer edge of the color printing area is Concentric circles and distance from the visual center of the contact lens are 10.0 ± 5.0 mm, and the color printing area has a transmittance of less than 50%. The contact lens for controlling myopia and combining beauty using chromatic aberration according to claim 1 of the patent application, further comprising a color printing area extending outward from the peripheral area, wherein an outer edge of the color printing area is Concentric circles and the visual center of the contact lens are 9.0±4.5 mm, and the color printing area has a transmittance of less than 20%. A contact lens for controlling myopia and combining beauty using chromatic aberration according to claim 2 or 3, wherein the color printing zone has a plurality of void regions surrounding the peripheral region, and the void regions are The sequence is arranged in a plurality of annular bands away from the peripheral zone, and the closer to the peripheral zone, the more the void zone has, wherein each void zone has an arbitrary shape and the area is less than 1.0 mm ² , and the void zones are The area ratio of the total area to the color printing area is less than 0.5. According to the scope of claim 1, the visor is used to control myopia and combine cosmetic lenses, wherein the outer edge of the peripheral zone is concentric and has a distance of 9.0±4.5 mm from the visual center of the contact lens. The peripheral region has a transmittance greater than 10%, and the peripheral region is progressively colored, and the transmittance of the peripheral region is gradually smaller as it is further away from the visual center of the contact lens. A contact lens that utilizes chromatic aberration to control myopia and combines beauty according to claim 1, wherein the dye dyed in the peripheral region may be selected from direct dyes, reactive dyes, Shilin dyes, and even A nitrogen dye, a mercapto dye, an acid dye, a disperse dye, and any combination of the above several dyes. A contact lens that utilizes chromatic aberration to control myopia and combines beauty according to the second or third aspect of the patent application, wherein a pigment used in the color printing area can be blended according to the color of the eye iridescence. The pigment may be selected from the group consisting of [phthalocyanine (2-)] copper, carbazole violet, chrome oxide green, chromium-cobalt-aluminum oxide, phthalocyanine green, iron oxide, titanium dioxide, mica-based pearlescent pigment, and the like. Any combination of several pigments.