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Long-term exposure to UV rays causes eye damage and premature aging. Transition lenses help shield eyes from harmful UV rays while reducing glare to provide comfortable vision. Transition lenses are the best choice for anyone who goes in and out of sunlight frequently, such as workers spending time on construction sites or shoppers grabbing lunch at a restaurant outside.
UVA & UVB Protection
Long-term exposure to UV rays is a significant cause of eye damage and can lead to cataracts and age-related macular degeneration later in life. Transition lenses, like the ones at Zenni Optical, are designed to shield the eyes from damaging UV rays indoors and out by darkening when exposed to sunlight or other sources of UV radiation and lightening back to clear when they’re removed from this exposure. This advanced technology makes them a convenient option to replace traditional sunglasses and prescription glasses. The photochromic technology incorporated into transition lenses works by changing the structure of silver halide and chloride molecule trillions when exposed to UV light. This causes the lens to appear tinted as it adjusts to varying lighting conditions, and it also helps protect against UV rays even when the lens is not darkened. In addition, transition lenses come in various lens designs and shades to meet any patient’s or personal style’s needs. They’re available in prescription and non-prescription frames, bifocals, trifocals, and progressive lenses. They’re also compatible with anti-reflective coatings, which reduce glare for improved vision in low-light environments. When choosing a pair of transition lenses, it’s essential to consult with an experienced eye care professional.
Blue Light Protection
Blue light from digital screens and the sun can damage your eyes by passing through your cornea and lens. This can lead to eye strain and dry eyes. It can also disrupt melatonin production and disrupt your circadian rhythm. Blue-light filtering glasses are designed to absorb or block the transmission of short wavelengths of blue light from 440-490 nanometers, the most harmful portion. They can help reduce digital eyestrain and improve sleep quality by limiting exposure to this light at night. Some studies have found that blue-light lenses decrease the frequency of symptoms related to digital eyestrain, such as eye fatigue and headaches. A combination of lifestyle adjustments and blue light filters can provide the best results for improving sleep and eye health. These include following the 20-20-20 rule of taking breaks away from the screen and using your device’s dark mode, which adjusts the display to a yellow or amber color to filter out the blue light. In addition, blue-light filtering lenses can help by absorbing the damaging short-wavelength blue light and reducing its impact on the retina. They also contain the antioxidant carotenoid lutein and zeaxanthin, which can help slow cataract development by protecting the lens from oxidative damage.
High-Index Lenses
High-index lenses are designed to be thinner and lighter than standard plastic or glass lenses, making them an excellent choice for anyone looking for an edge in clarity and comfort. Their higher refractive index (measured in units called diopters) means they can bend light more efficiently, meaning you’ll need less lens material for the same prescription. Because they’re so thin, high-index lenses are a good option for people who want to avoid the “bug-eyes” appearance caused by thicker lenses. They also work well for those whose frames may not support thicker lenses or those with a strong prescription that makes their standard plastic and glass lenses too thick. In addition to being thin, high-index lenses are often aspheric — which further reduces the thickness of your lenses, offering a sleek and natural look. These lenses are also incredibly durable, as they can be scratch-resistant, and most come with an anti-reflective coating for added protection and clarity. High-index lenses are available in many options, including bifocal and progressive lenses.
Anti-Reflective Coating
As the name suggests, this coating reduces annoying reflections on your lenses. This enhances visual clarity and helps you focus, even in dim light. It also minimizes distracting glare from digital screens, street lights, and other reflective surfaces. Anti-reflective coatings are applied to the front and back of your lenses during the lens manufacturing process. They are microscopic layers of different dielectric materials that reflect light differently at specific wavelengths. The layers are combined in a high-vacuum environment to form a single layer that minimizes lens reflections. The result is a more precise, more comfortable vision when reading, working on a computer, driving, or engaging in any activity where you must focus closely. The top layer of a quality anti-reflective treatment is oleophobic and hydrophobic. This means that oil, water, and dust bead off the surface of the lens rather than adhering to it, making the lenses easier to clean and extending their lifespan. Your lenses will stay cleaner, and you’ll spend less time scrubbing them and more time enjoying your enhanced vision.
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