As new issues come to light, such as the damaging effects of UV and Blue-Violet light on your eye health (1), lens coatings can offer additional protection for your eyes. So, while your prescription lenses will help you to see clearly, having a lens coating can support your eye health, and it can enhance your acuity and comfort even further.
With that in mind, let’s take a look at some of the most effective lens coatings available.
Anti-reflective and anti-smudge lens coatings
Two of the most inconvenient aspects of wearing lenses include reflections and smudges. Both can hinder your vision and have a negative impact on your comfort. An optical lens is designed to refract light to correct your vision and due to the nature of an optical lens surface it is inevitable that light will reflect in some way.
With an increase of artificial light sources, we’re surrounded by reflections. Coming from all angles, light reaches your spectacles creating reflections. These reflections can be a source of discomfort and impact your everyday life. This leads us to adopt new behaviour, consciously and subconsciously. Some adjust their head positioning, some change posture and some even remove their lenses, just to deal with reflections.
Anti-reflective lens coatings are an ideal solution for problems of this kind. Lens enhancements that offer anti-reflection or anti-glare properties are perfect for improving your visual acuity. Likewise, smudges can be very distracting and difficult to get rid of. Lens enhancements can protect your lenses by repelling smudges and resisting scratches.
Crizal Sapphire UV is a lens coating that provides best in class transparency, to achieve optimal vision and aesthetics. By reducing the number of reflections, Crizal Sapphire UV can provide less distractions when wearing your lenses. The lens is enhanced aesthetically so that they look invisible to others; this is perfect for simple, day-to-day activities like talking to others.
Combining Crizal Sapphire UV, your lenses will repel water droplets, dust particles, scratches and smudges. Resulting in visual clarity and easy to clean lenses that are protected, your new lens enhancement supports your everyday life.
UV protective lens coatings
By combining the right lens enhancement with your lenses, you can support your eye health. In recent years, research has shown us that UV protection is a critical part to maintain healthy vision.
UV protection lens coatings are a helpful, necessary, asset to your lenses. Crizal Prevencia can offer protection from all harmful light, which includes UV and Blue-Violet light. With an E-SPF of 35, Crizal Prevencia has the highest E-SPF index for clear lenses.(2)
UV protection on your lenses can help to prevent premature ageing and reduce the risk of developing cataracts.(3) This can ensure visual acuity and comfort is maintained.
Are lens coatings suitable for children?
If your child requires lenses to see clearly, you should consider a lens enhancement. Not only do they offer a protective layer to prolong the life of the lenses, but they are just as helpful to a child as they are to an adult.
Children will benefit from a lens coating particularly when it comes to starting school. This is because coatings like Crizal Sapphire UV will eliminate distracting reflections, which could hinder their vision and therefore impede their learning. What’s more, children’s eyes are more susceptible to the cumulative effects from UV light and so any extra protection you can give them is a great advantage.
(1) McCarty CA, Taylor HR. A review of the epidemiologic evidence. linking ultraviolet radiation and cataracts. Dev Ophthalmol. 2002; 35:21-31.
Sunlight and the 10-year incidence of age-related maculopathy: The Beaver Dam Eye Study. Arch. Ophthalmol., 122, 750-757.
New discoveries and therapies in retinal phototoxicity, Serge Picaud et Emilie Arnault, Points de Vue N°68, Spring 2013.
(2) The E-SPF® index depends on the lens material itself and the coating. E-SPF® is a global index rating the overall UV protection of a lens. E-SPF® was developed by Essilor International and endorsed by 3rd party experts. Lens performance only. The E-SPF® index excludes direct eye exposure that depends on external factors (wearer’s morphology, frame shape, position of wear). E-SPF®=10 for Crizal® UV lenses with Essilor Orma 1.5®
(3) Cataract: http://www.pointsdevue.com/article/ageing-and-crystalline-lens, http://www.pointsdevue.com/article/effects-ageing-visual-system. McCarty CA, Taylor HR. A review of the epidemiologic evidence linking ultraviolet radiation and cataracts. Dev Ophthalmol. 2002; 35:21-31..