Glasses which change in the sun

But is it really as good as it sounds? Is it worth it? The benefits of having transitional lenses can seem obvious, but not all of them are apparent. Here are some of the biggest pros to getting a pair of transitional lenses:. So does the bad outweigh the good? These are some of the drawbacks of photochromic lenses:. Consulting with your eye care professional about transitional lenses is the best way to decide what will work for you. Finding your optimum eye care choice may involve a lot of details and discussion, but it will lead to you being happier with the outcome.

Spindel Eye Associates knows from years of experience that getting to know your needs and visual goals is an essential step to great results. Do you still have questions about finding the right Transition Lenses for you? The Pros and Cons of Transition Lenses. The lenses are fully clear when indoors or at night. Whereas, these lenses darken and adapt to every variation of light outdoors so you can see your best.

The lenses provide you with better contrast, more clarity, reduce strain, eye fatigue, and glare for effortless vision. These lenses are everyday-adaptive lenses that maintain a hint of tint indoors and reach superior darkness in changing light conditions outdoors. The lenses are an ideal choice for prescription lenses wearers who are sensitive to light and spend a lot of time outdoors. The lenses work best while driving because they respond to both natural and UV light. Photochromic lenses are convenient and can easily be accessorized with bold sunglasses.

However, there are some people who find it a hassle to switch between regular glasses and prescription sunglasses. Photochromic lenses are a good option for children who wear eyeglasses. They can benefit from glasses that automatically change color in sunlight. Transition lenses last longer than typical prescription eyeglasses and can last for up to three years. The lenses may not get as dark and show signs of yellowing after about three years.

However, even when getting a new pair or a replacement, you will only be paying for an upgrade charge of photochromic lenses. A pair of prescription sunglasses can cost as much as or even more than regular prescription glasses.

With prescription sunglasses rather than replacing a pair of glasses, you will be replacing two pairs of glasses every time your prescription will need an updating. Photochromic glasses save you money overall.

Photochromic glasses continuously adapt to changing light and reduce eye strain. The glasses reduce sensitivity to light and protect from UV rays. The lenses change color in response to the brightness outdoors, on the contrary, prescription sunglasses may be too dark for a partly cloudy day.

The lenses are especially useful for people who spend a large portion of their day in bright outdoor conditions. Some prescription sunglasses include photochromic treatment on already tinted glasses, making the tint darker than the conditions call for.

Photochromic lenses are a great choice when going for a walk or for an outdoor barbecue, however, they still have some drawbacks. Users quite often complain that the eyeglasses are small framed and large enough to block the sun comfortably.

The eyeglasses with variable tint should wrap around to cover the entire eye for best protection and to effectively block stray UV rays.

In addition to this, the lenses make the display on your camera difficult to see in the sun and are not ideal for outdoor photography. If you like being in front of the camera, you may want to pose without the glasses for outdoor portraits to avoid dark lenses in your photo. You need to protect your eyes from the sun every time you step outside.

Sunlight sensitive lenses have specialized dyes embedded in or bonded to their surface. These dyes contain molecules that undergo a chemical reaction whenever they come into contact with UV rays. The trillions of sunlight-sensitive molecules in every photochromic lens change shape and structure when exposed to UV radiation. As a result, they can absorb visible light, so the eyeglass lenses darken. The chemical process that changes sunlight-sensitive lenses from light to dark and vice versa is also affected by factors such as temperature.