Lens Composition

Plastic lenses are fantastic for prescription eyeglasses and prescription sunglasses due to their tint factor. Experience the comfort of featherweight lenses, crafted to your exact prescription. The majority of individuals designate this lens as the 'Standard,' 'Regular,' or 'Plastic' lens.

The patenting of CR-39 allyl diglycol carbonate monomer in 1945 marked a pivotal moment in the history of optics. This innovative monomer, a small molecule capable of bonding into larger chains, paved the way for the development of new polymers. This breakthrough ignited a wave of creativity and innovation in the industry.

The advent of plastic technology has revolutionized the eyewear industry, enabling the widespread adoption of plastic lenses. Composed of CR-39 allyl diglycol carbonate monomer, these lenses provide the optical clarity of glass while exhibiting enhanced thermal, mechanical, and chemical properties. The CR39 monomer is widely used for producing plastic lenses for both prescription eyeglasses and prescription sunglasses . CR-39 plastic products necessitate a high degree of abrasion resistance.

Plastic lenses formed from the CR-39 monomer provide to a lesser extent chromatic optical aberration compared to polycarbonate lenses, proven by tests measured by the Abbe number. The Abbe number is a measure of the relative dispersion of optical glass, indicating how much it separates different colors of light.

In conclusion, The Plastic Lens offers a significant weight advantage over other materials and can be readily adapted to individual prescriptions. The Plastic Lens is not recommended for rimless frames.

Polycarbonate lenses, also known as "poly lenses," are engineered from a thermoplastic polymer renowned for its superior impact resistance. This lightweight material can be easily molded into various shapes, making it suitable for children's eyewear, sports goggles, and rimless frames. Originally developed for industrial safety glasses, polycarbonate has a long-standing reputation for eye protection.

Today's fashion-forward eyewear often features polycarbonate lenses, a technological marvel that offers both style and substance. These lenses are not only ten times more impact-resistant than standard plastic but are also remarkably lightweight and slim, making them a popular choice for people of all ages.

Using a much higher index of refraction than plastic lenses or polycarbonate lenses, high prescriptions no longer mean thick ugly chunky lenses that can only be cut into fat heavy frames. The advent of thinner, lighter materials facilitated the development of the High Index 1.67 lens. High Index Lenses offer a substantial advantage over conventional plastic lenses. Experience superior protection and a sleeker look with High Index 1.67 lenses. Made from polycarbonate, they're five times stronger and up to 65% thinner than standard plastic lenses.

Cutting-edge technology enables devices to be both powerful and aesthetically pleasing, combining high performance with a slim, flat profile. If you suffer from Farsightedness, the good news is that your eyes will magicaly appear less magnified & more natural in their size. The pricing strategy has been instrumental in shaping the trajectory of the High Index 1.67 lens. No more paying a premium for high-powered glasses. Enjoy affordable options. Our prices represent a substantial discount on today's retail lens prices. Invest in your vision and your style with these cutting-edge lenses. They're so light, you'll forget you're even wearing them.

Experience the pinnacle of optical clarity and style with Hoya High Index Lenses. Designed for individuals with higher prescriptions, these lenses deliver superior visual acuity in the thinnest, lightest, and most attractive form. The unique combination of high-index material and a 1.70 refractive index results in an extraordinary Abbe Value of 36, ensuring minimal chromatic aberration and optimal color fidelity. Whether you need single vision, bifocal, or progressive lenses, Hoya offers the ultimate solution for discerning wearers.

Experience the future of eyewear with EYRY, a revolutionary high-index material. Hoya's 1.70 EYRY lens offers a perfect blend of style and substance. Its ultra-thin profile and superior optical performance provide unparalleled comfort and crystal-clear vision. Say goodbye to heavy, bulky lenses and hello to a new era of eyewear.

Hoya's pioneering 1.70 EYRY lenses offer a lightweight, visually superior experience. With a remarkable 1.0mm center thickness and a specific gravity of 1.41, these lenses blend advanced technology with exceptional comfort.

Experience crystal-clear vision with Hoya High Index Lenses, featuring anti-reflective, UV-protective, and scratch-resistant coatings.

The Hi-Index 1.74 lens represents the pinnacle of optical technology. Its superior design, featuring flatter curves compared to lower index lenses, results in a significantly thinner and more aesthetically pleasing profile. The advanced anti-reflective coating further enhances visual clarity and reduces eye strain.

Hi-index 1.74 lenses are great for the following reasons.

Users requiring lenses with ultra-low profile and minimal thickness.

Customers interested in the newest advancements in optical lens design and manufacturing.

Prescriptions aiming for mid to high-range solutions, prioritizing the best cosmetic options.

Fashion-forward individuals seeking the newest styles.

Contact lens wearers.

Photochromic lenses, also known as Transition lenses, utilize light-sensitive technology to adapt to varying light conditions. They darken to 70% in bright sunlight and lighten to 5% indoors, providing 100% UV protection. The term "photochromic" itself refers to this light-induced color change.

Enjoy the convenience of photochromic lenses, perfect for both prescription and non-prescription eyewear. These innovative lenses have become increasingly popular, with approximately 25% of prescription eyeglasses now featuring this technology. The timeless colors of brown and gray are the most common options for photochromic lenses. While they typically last 3 years, their light-adjusting abilities may diminish over time. To ensure optimal vision and comfort, eye care professionals recommend replacing your photochromic lenses every 3 years.

To minimize back-surface reflections on Sun-Sensitive lenses, an anti-reflective (AR) coating can be applied to the rear surface or both surfaces. The AR coating is compatible with the photochromic process. When applying Anti Reflective coating to any sun sensative lens, the process will increase the light transmittance in indoor environments and outdoor environments. Typical Sun Sensative Lens are made of plastic material.

Polycarbonate Sun-Sensitive Lenses, also known as Transitions or Photochromics, are a type of photochromic lens made from polycarbonate material. These lenses undergo a reversible photochromic reaction, darkening to a 70% tint in strong sunlight and lightening to a 5% tint indoors or in shaded areas. The term "photochromic" refers to their ability to change color ("chroma") in response to light ("photo"). These lenses offer both impact resistance and UV protection, blocking 100% of harmful UV rays.

Enjoy the convenience of photochromic lenses, perfect for both prescription and non-prescription eyewear. These innovative lenses automatically adjust to changing light conditions, eliminating the need for multiple pairs of glasses. Approximately 25% of prescription eyeglasses today utilize photochromic lenses. While brown and gray are the most common options, it's important to note that these lenses have a lifespan of around three years. To maintain optimal performance, your eye doctor recommends replacing your lenses every three years.

To minimize back-surface reflections on Polycarbonate Sun-Sensitive lenses, an anti-reflective (AR) coating can be employed on either or both surfaces. This treatment does not compromise the photochromic properties of the lens. When applying Anti Reflective coating to any sun sensative lens, the process will increase the light transmittance in indoor environments and outdoor environments. Typical Sun Sensative Lens are made of plastic material.

Polarized lenses have been a popular choice for years, offering relief from glare in both eyeglasses and sunglasses. They work by filtering out specific light waves, a process called polarization. This filtering action is similar to window blinds, controlling the direction of light rays to reduce glare from reflective surfaces such as car hoods or bodies of water.

Sunlight, when directly emitted from the sun, is unpolarized. But once it strikes a horizontal surface, it reflects in a way that polarizes the light horizontally. This horizontally polarized light can then reflect directly into our eyes, leading to the intense glare experienced on roads, water bodies, and vehicle hoods.

Polarized lenses employ a unique laminated surface with vertical stripes. This design allows only vertically polarized light to reach the eye, effectively filtering out the horizontally polarized light responsible for glare. As a result, wearers experience reduced eye strain and enhanced visual clarity. Whether you need a prescription or non-prescription lens, polarized technology can be incorporated into your eyewear for optimal vision.

Drivewear lenses stand out as the only photochromic lenses that darken behind car windshields, optimizing vision for various driving scenarios. Their polarization technology further minimizes glare, enhancing safety and comfort. While traditional lenses like Transitions may be clear indoors, they don't activate behind windshields. Drivewear lenses, however, offer a consistent, lightly tinted experience both indoors and outdoors.