Who would like any botheration to carry two eyeglasses everywhere? A prescription glasses for improved vision and another one for protection against UV/Blue Light. What if you misplace one? Can a sunglass provide good vision outside? Can prescription glasses protect against Blue Light?
Gone are those days when you had no choice but to carry two sets of eyewear for different purposes. Now you get a variety of transition lenses that provide the power for vision correction and also protect against harmful blue light from digital devices and sun rays.
But can transition lenses entirely replace sunglasses? Does it have a protective layer against harsh glare that deflects from water, terrain, or snow? If so, why do we need sunglasses? Let’s explore the possibilities and limitations of both glasses to help you pick the ideal eyewear.
- · What is Transition Lens?
- · Transition Glasses vs. Sunglasses
- · Pros and Cons of Transition Glasses
- · Can Transition Lenses Replace Sunglasses?
- · Unfolding the Myths About Transition Lenses
What are Transition Lenses?
Transition lenses are also known as light-adaptive lenses or photochromic lenses. It uses innovative photochromic dyes that cause the lenses to activate swiftly or darken when exposed to ultraviolet (UV) radiation from the sun. The stronger the UV radiation, the darker the lenses become.
The manufacturers of Transitions® lens explain, "When photochromic lenses are exposed to UV light, trillions of photochromic molecules in the lens begin to change the structure. This reaction is what causes the lenses to darken. These molecules constantly and smoothly recalibrate so the optimal amount of light reaches your eyes whether you’re in bright sunlight, under cloud cover, or indoors."
UV radiation is harmful and can do serious damage to our skin and eyes. It has a high presence outdoors, but studies have shown we may also receive up to 40% indoors. So, it exposes us all to it at all times.
Children, due to their hyperactivity, coming in and out of the house, are more prone to UV attack because their crystalline lens is not fully developed, enabling more light to enter the eye. Kids with astigmatism would have difficulty focusing when exposed to high illumination.
Earlier transition lenses were made of glass and in grey color only, but now you get photochromic glasses in several colors and are made of various materials. Transition lenses by global brand Essilor come in 7 different colors and 6 mirror options.
Myth 1: Transition lenses cannot become dark in a car
The car windshields block most UV light. So, most photochromic glasses do not offer sufficient darkness for this reason. However, there are specialized lenses like Transitions XTRActive® that can darken even inside the car and respond to UV and natural light. Then there are Transitions Drivewear® lenses that can enhance the driving experience.
Myth 2: Only older people should use transitions lenses
Transition lenses are perfect for dynamically adjusting to changing light levels both inside and outside. This feature has nothing to do with anyone’s age.
Transition lenses are also perfect for children who cannot maintain several pairs of glasses. Youngsters are more exposed to blue light emitting from digital devices because of their constant use. Transitions XTRActive® lenses have the highest blue blocking effect (34%). Combining Crizal® Prevencia® lenses with Transitions XTRActive® lenses can be a good aid if you are a migraine sufferer or someone with significant light sensitivity.
Myth 3: While indoors, transition lenses aren’t fully clear
The color-changing molecules rapidly darken but take longer for the chemical transition before they return to their neutral clear state. As a result, it may take longer for your lenses to clear completely. Transitions Signature VII® lenses are fully clear indoors in all colors: grey, brown, and graphite green.
It's hard to dispute the benefits transition lenses provide for our complex lifestyle. They shield your eyes from harsh glare and harmful UV radiation while being convenient and managing a substantial chunk of the variations in lighting conditions every day.
So, can we confidently say transition lenses can replace sunglasses? Well, we can only conclude with an accommodating note that for some activities, such as long drives and sporting activities, sunglasses are undoubtedly an excellent supplement.