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  • Lecheng 1.499 Single Vision Lenses

    Lecheng 1.499 Single Vision Lenses

    Lenses with a refractive index of 1.499 are a common option for corrective eyeglasses. They provide good visual clarity and are suitable for those with mild to moderate prescriptions for nearsightedness or farsightedness. These lenses are also relatively thin and lightweight, making them a practical choice for daily wear.

  • Lecheng 1.56 Single Vision Lenses

    Lecheng 1.56 Single Vision Lenses

    1.56 single vision lenses are a type of eyeglass lens. The number 1.56 refers to the refractive index of the lens material, which indicates how much the light is bent as it passes through the lens. Single vision lenses are used to correct vision at a single distance, either for nearsightedness or farsightedness. These lenses are often thinner and lighter than standard lenses, making them a popular choice for prescription eyeglasses.

  • Lecheng 1.59 Polycarbonate (PC) Single Vision Lenses

    Lecheng 1.59 Polycarbonate (PC) Single Vision Lenses

    1.59 POLYCARBONATE(PC) lenses are known for being lightweight, impact-resistant, and offering UV protection. The 1.59 index indicates the refractive index of the lenses, with a higher index generally indicating a thinner lens. Polycarbonate lenses are often a popular choice for those needing durable and safe eyewear, such as for sports or safety glasses.

  • Lecheng 1.61 Single Vision Lenses

    Lecheng 1.61 Single Vision Lenses

    1.61 single vision lenses refer to a type of lens used in eyeglasses. The number 1.61 refers to the refractive index of the lenses. In general, a higher refractive index indicates a thinner and lighter lens.

    Single vision lenses are used to correct vision for a single distance, such as nearsightedness or farsightedness. These lenses have the same prescription power throughout the entire lens, providing clear vision at a specific distance.

    The 1.61 refractive index indicates that these lenses are relatively thin and lightweight, making them a popular choice for people with higher prescriptions who want thinner and more aesthetically appealing lenses.

  • Lecheng 1.67 Single Vision Lenses

    Lecheng 1.67 Single Vision Lenses

    1.67 single vision lenses are high-index lenses that offer a thinner and lighter alternative for individuals with stronger prescriptions. The refractive index of 1.67 indicates that the lenses have an even higher level of light-bending ability than lower index materials, allowing for further reduction in thickness and weight.

    These lenses are particularly beneficial for individuals with high prescriptions, as they can help reduce the magnifying effect of traditional lenses, providing a more cosmetically appealing and comfortable solution.

  • Lecheng 1.74 Single Vision Lenses

    Lecheng 1.74 Single Vision Lenses

    1.74 single vision lenses are high-index prescription lenses designed to provide a thinner and lighter option for individuals with higher vision correction needs. These lenses offer superior optical clarity and reduced distortion, making them a popular choice for those seeking improved visual acuity in a thinner and lighter lens. While they tend to be more expensive due to their advanced technology, they can offer enhanced comfort and aesthetic appeal.

  • Lecheng Photochromic Lenses

    Lecheng Photochromic Lenses

    Photochromic lenses are a type of eyeglass lens that darken when exposed to ultraviolet (UV) radiation and return to their clear state when the UV source is removed. The lenses contain photochromic molecules that undergo a chemical reaction when exposed to UV radiation, causing them to darken. The degree of darkening depends on the intensity of the UV radiation and some of photochromic molecules present in the lenses.

    Photochromic lenses are ideal for people who spend a lot of time outdoors and want to avoid the hassle of switching between regular glasses and sunglasses . They provide protection against harmful UV radiation and glare from the sun.

  • Lecheng RX Lenses

    Lecheng RX Lenses

    RX lenses, also known as prescription lenses, are specially made lenses for eyeglasses that are customized to an individual’s prescription. These lenses are designed to correct vision problems such as nearsightedness, farsightedness, astigmatism, and presbyopia. When getting new eyeglasses, it’s important to have an up-to-date prescription from an eye care professional in order to ensure that the lenses are accurately tailored to your specific vision needs.

  • Lecheng Tinted Lenses

    Lecheng Tinted Lenses

    Tinted lenses are a type of sunglass lenses that have a specific color added to them to reduce the overall brightness and glare from the sun. Different tints can offer various benefits, such as enhanced contrast and visual clarity in specific weather conditions or outdoor activities. For instance, gray tints are great for general outdoor use, while yellow or orange tints can improve contrast in low-light conditions. Polarized lenses, on the other hand, are designed to reduce glare and enhance visual clarity, especially when around water or snow.

  • Lecheng Polarized Lenses

    Lecheng Polarized Lenses

    Polarized lenses are a type of sunglass lenses that reduce glare and eyestrain caused by reflected light. They have a special chemical applied to them to filter light, which blocks horizontal light waves bouncing off a smooth surface such as water or a car hood. This filtering creates vertical openings for light, allowing only light rays that approach your eyes vertically to fit through those opening. As a result, the image you see with polarized lenses is a bit darker than usual, but objects look crisper and clearer, and details are easier to see.

  • Lecheng Progressive Lenses

    Lecheng Progressive Lenses

    Progressive lenses are corrective lenses used in eyeglasses to correct presbyopia and other disorders of accommodation. They are characterized by a gradient of increasing lenses power, added to the wearer’s correction for the other refractive errors.

  • Lecheng Flat Top Lenses

    Lecheng Flat Top Lenses

    Flat top lenses, also known as D-segment or straight-top bifocals, are a type of multifocal eyeglass lens with a distinct flat area at the top for distance vision and a visible segment for near vision below it. These lenses are designed to provide clear vision at both near and far distances. They are often prescribed for individuals who require correction for both presbyopia and other vision issues.

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