Photochromic Lenses

Why Photochromic Lenses?
You may have heard of photochromic lenses, such as Transitions®, SunSync, or PhotoGray lenses (from way back when!), but do you know what they are? They might be just what you need!

Photochromic lenses, or light reactive lenses, change in the light when UV and HEV are present. HEV is high energy visible light, or blue light. UV and HEV rays are very harmful to our eyes, so protection is paramount!

Sunglasses are essential to protecting your eyes throughout your life. 80% of all UV damage to our eyes happens before we turn 18, so we need to protect your kids too. No matter your age, too much exposure to UV light can damage inside AND outside our eyes. Extended exposure to the sun’s UV rays has been linked to significant eye problems, including cataracts, macular degeneration, pinguecula, pterygium and photokeratitis. You can read more about these in our upcoming blog posts.

Wearing sunglasses is one of the greatest and simplest things you can do keep your eyes healthy. Yet, in today’s fast-paced society not everybody has the time to switch between glasses and sunglasses (never-mind the expense), so photochromics provide an ideal, comfortable solution.

Upon the presence of UV light the lenses will darken, and then go back to clear in surroundings where there is none. They have even developed lenses which will change in your car, despite the UV protection on the windshield! Typically this is due to heat transfer, in which a warm environment activates the silver bromide molecules in the lens more so than a colder environment. To further clarify, you may expect the lenses to become darker when you are outside, and to be clear indoors.

When to Consider Photochromics
Photochromic lenses are a multipurpose pair that fit the role of a primary pair and sunglasses at once.  You should consider photochromics if:

We are more than happy to show you a demonstration of how effective they can be, and show you any limitations you may find in terms of the time they make take to going back to being fully clear indoors.

We’ll help find the Right Pair for You
So now that we have explained the benefits, you might be wondering which ones are right for you. There are several features to consider including brand, color, and style. Our optician will work with you to find the best lens for your  eye health, daily needs, and your style. Photochromic lenses are becoming much more stylish, especially with the introduction of Transitions® Style Mirrors and Style Colors which give a much wider range of colors to choose from!

Regardless, before making a decision, be sure to consult with us! We look forward to seeing you!

Author
David Greening David Greening, ABOC, BS(HONS) Ophth. Dispensing David is our resident optician, and has been in optics since 2002. He attained his Bachelor of Science degree in Ophthalmic Dispensing in Kent, England (2014). He has extensive experience, having managed his own practice for many years prior to arriving at Astorino & Associates Eye Center. He is a licensed American optician (ABOC) and is well-recognized for his quality of service, attention to detail, and patient care.

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