Photochromic Lens Technology, Are They a Vision Revolution?
With New Lens Technology with Photochromic Lenses
In the dynamic intersection of technology and eyewear, photochromic lenses have carved out a niche, revolutionising how we perceive and interact with our visual world.
These smart lenses, are celebrated for their ability to adjust tint in response to UV light exposure. They are a testament to the remarkable strides made in eyecare technology
The Science of Adaptation
Embedded with microcrystals that react to UV rays, these lenses darken under the sun’s glare, offering a shield against harmful radiation, and revert to their clear state indoors or in low light conditions. This adaptability not only enhances visual comfort but also protects the eyes from UV-induced ailments, marrying functionality with health in a seamless visual experience.
The Innovation and The Australian Market
Australia is the perfect setting for the adoption of photochromic lens technology.
Our broad spectrum of light conditions, from the harsh sunlight of its beaches to the variable lighting of its cities, makes photochromic lenses particularly suitable for us.
Photochromatic lenses darken fully in bright sunlight, but only go partially dark in cloudy conditions, providing the appropriate amount of glare protection required.
A Comparative View: Photochromic Lenses Versus Sunglasses
While traditional sunglasses have been the go-to option for outdoor eye protection as well as a fashion statement, photochromic lenses offer an alternative.
Photochromic lenses adapt to changing light levels, providing tailored protection and enhanced visibility in varying environments. Glasses with the photochromatic feature can be used as one pair for general purpose use, reducing the need for multiple pairs of glasses.
However, for activities in intensely bright or reflective conditions, such as sand, water sports, snow or driving on open roads, polarized sunglasses offer much better glare reduction.
Eyes by Design stocks a large range of Maui Jim Sunglasses as they are the perfect sunglasses for Australian conditions. Read more about Maui Jim’s here or why mirrored sunglasses are a great option.
Polarized sunglasses are much better for driving on bright days because they cut reflected glare better and car windscreens have UV blockers in them, reducing the amount that photochromatic lenses can darken.
Nonetheless, for everyday wear and versatility, photochromic lenses do present a compelling case by balancing UV sun protection, convenience, and style in a single pair of glasses.
Photochromic Lenses vs Traditional Sunglasses
UV Protection – Both types offer UV protection.
- Photochromic lenses block 100% of UVA and UVB rays when activated.
- Sunglasses provide similar UV protection, often enhanced with polarized lenses for glare reduction.
Tint Depth
- Photochromic lenses’ tint varies with UV light intensity and temperature, potentially not matching the consistent depth of sunglasses.
- Sunglasses provide a constant tint level, beneficial in extremely bright or specific conditions.
Response Time
- Photochromic lenses adjust their tint but may not transition as instantly as putting on or removing sunglasses.
- Sunglasses offer immediate protection without the need for transition time.
Colour and Polarization Options
· Sunglasses offer a broader range of tint colors and polarization options, preferred for certain activities.
· Photochromic lenses have varied tints but generally lack polarization in their darkened state.
Indoor to Outdoor Convenience
- Photochromic lenses excel in convenience, automatically adjusting to light changes without the need to switch glasses.
- Sunglasses require manual switching with light condition changes, less convenient for frequent indoor-outdoor movement.
Other Factors Affecting Photochromic Lenses’ Popularity
Cost
Generally more expensive than standard lenses, potentially deterring budget-conscious consumers.
Transition Time
Earlier versions had slower transition times, affecting initial perceptions despite technological improvements.
Performance in Vehicles
Initially, they didn’t darken well inside cars due to UV-blocking windshields, limiting their appeal to drivers.
Temperature Sensitivity
Effectiveness can vary with temperature, posing challenges in extreme climates.
Aesthetic Preferences
Some consumers prefer the distinct look of sunglasses or the ability to accessorize with various pairs.
Lack of Awareness
Potential users might not be fully informed about the benefits and advancements of modern photochromic lenses.
Competition from Contact Lenses and Sunglasses
Availability of prescription sunglasses and the convenience of contact lenses offer alternatives to photochromic lenses, impacting their market share.
Looking Ahead
Photochromic lenses have continued to evolve, now offering faster transitions, better performance in a range of temperatures, and improved activation behind UV-protected vehicle glass.
As lens technology advances and consumer awareness grows, the popularity of photochromic lenses may increase, offering a convenient and effective option for eyewear.
Over the last five years, photochromic lenses have seen significant advancements, enhancing their appeal and functionality. These improvements cater to a broad spectrum of users’ needs, from everyday wear to specific conditions like driving.
Faster transition times, broader color options, and improved compatibility with digital screens are just a few areas where future developments might lead. These prospective innovations promise to further integrate photochromic lenses into our daily lives, redefining expectations and setting new benchmarks for eyewear technology.
One of the notable advancements is the introduction of Transitions Gen 8 lenses in July 2019.
These lenses are engineered to protect against both indoor and outdoor light, transitioning from dark to clear quicker than their predecessors — in about 30% less time.
They achieve significant darkness outdoors, up to category 3, depending on UV light intensity and temperature, thus providing an optimal balance between outdoor comfort and indoor clarity
Navigating the Light: Photochromic Lenses for Drivers
The quest for the perfect driving eyewear has long faced the challenge of UV protection behind car windshields, which block the UV light necessary to activate traditional photochromic lenses.
However, the innovation of Transitions XTRActive lenses has addressed this gap. Designed to respond to both UV and visible light, these lenses ensure that drivers enjoy consistent protection and visual clarity, darkening behind the windshield to mitigate sunlight and glare.
They block up to 34% of harmful blue light indoors and up to 90% outdoors. Moreover, these lenses have improved fade-back speeds, up to 35% faster than previous versions, making them ideal for driving as they activate quickly and darken behind the windshield
Fashion Meets Functionality
Beyond their practical benefits, photochromic lenses have emerged as a style accessory, allowing wearers to express their personal aesthetics without compromising on eye health.
The modern photochromic lens comes in an array of colors and can be fitted into frames ranging from sleek, minimalist designs to bold, statement pieces. Now with a range of colors, materials, and even options like mirror coatings for those seeking a trendy look. Sensity lenses by Hoya provide extra darkness outside and inside the car, addressing intense light or temperature conditions effectively This versatility ensures that eyewear can reflect individual style, making photochromic lenses a fashionable choice for those who value both appearance and functionality in their eyeglasses.
These advancements in photochromic lens technology over the last five years have significantly improved their performance, making them more versatile and suitable for a wider range of activities and lighting conditions. Whether for everyday use, specific outdoor activities, or driving, modern photochromic lenses offer enhanced protection, convenience, and style.
In Conclusion
Photochromic lenses represent a significant leap forward in eyewear, offering an intelligent solution that adapts to the wearer’s environment to provide optimal vision and protection.
As these lenses continue to evolve, they promise to further blur the lines between eyecare and lifestyle, ensuring that our vision is not only protected but also enhanced, regardless of where our day might take us.
Whether navigating the bright outdoors or transitioning between different lighting conditions, photochromic lenses stand at the forefront of eyewear innovation, heralding a new era where convenience, protection, and style converge seamlessly.
Want to know how the new photochromatic lenses are stacking up?
A lot has changed in the past couple of years and it might be a great idea to look at these lens options again.
Get in touch or come in and see the lens options that we have.
This article is intended to promote understanding of and knowledge about general eye health topics.
It should not be used as a substitute for professional advice, diagnosis or treatment.
Always seek the advice of your health care professional prior to incorporating this as part of your health regimen.
Dr Nicholas Altuneg
For over two decades, my greatest passion has been helping people of all ages live improved lives through better vision. At Eyes by Design, vision is so much more than being able to see clearly or read small letters from far away; it determines your perceptions and reactions every second of the day.
Read more about Dr Nick
