Setting trends since 1978

Things To Know About Photochromic Lenses

Author: Ejones
Date: April 16, 2022

For some people, wearing glasses isn't just a fashion statement or a way to complete an outfit; it's also necessary to address vision problems.

However, wearing prescription glasses outdoors, especially when the sun is shining brightly, can be uncomfortable. To protect your eyes from harmful sun rays, you'd have to switch between this set and use photochromic or transition lenses instead.

So If you're looking for photochromic lenses, you should know about photochromic lenses. In this article, To help you understand the benefits, we're covering everything you need to know about these underrated lenses.

What Are Photochromic Lenses?

Photochromic Lenses

Photochromic lenses are eyeglass lenses designed to be clear (or almost entirely clear) indoors and automatically darken in outdoor, bright conditions. Essentially, they are eyeglasses that transition into sunglasses in the absence or presence of light to ensure improved visibility. They are also known as light-adaptive lenses and variable tint lenses.

Other terms used for photochromic lenses include "light-adaptive lenses" and "variable tint lenses." One of the most popular brands of photochromic lenses is Transitions, although other brands are also available.

How do Photochromic Lenses Work?

Regular sunglasses block out particular wavelengths of light with either colored filters or polarisation. As photochromic lenses are carbon-based, the molecules react to UV; they change shape and absorb the light, making the lenses look darker.

When you step outdoors, UV rays from the sun hit your glasses, and the molecules inside your photochromic lenses will activate and darken.

The shades vary from clear to darker, depending on UV levels. The darkening can take up to 30 seconds for the tint to take effect on the glasses, and it can take between two to five minutes to return to normal when going back indoors.

They offer UV protection, which helps general eye health. 

Photochromic lenses, made of plastic, glass, or polycarbonate, come in various prescription glasses choices for those with eyesight problems. In many cases, plastic photochromic lenses are preferred over glass because of their molecular makeup. Users find the tint on plastic lenses more evenly distributed than on photochromic glass lenses.

Benefits of Photochromic Lenses

  • Blocking 100% of UVA/UVB light helps reduce eye strain, eye damage, and eye cataract risk later in life.
  • There's no need to carry both glasses and sunglasses, and you won't have to switch between them.
  • Although photochromic glasses are more expensive than regular prescription glasses, they are practically two-in-one, so you won't have to buy separate glasses and shades.

Pros and cons of photochromic lenses

Is it worth using the transition lens? You can consider these pros and cons before figuring out if this lens is suitable for you.


  1. Cost-effectiveness: Some people assume that photochromic lenses are an unnecessary luxury because they are more expensive than regular glasses. Think about it: once you own transition lenses, you will not need to purchase two sets of frames for your prescription and regular glasses, making it the most cost-effective option.
  2. Convenience: Since these lenses are a two-in-one option, you don't have to carry two pairs of glasses. And these glasses are the best ones for both indoors and outdoors.
  3. Comfort and protection: These lenses filter out many of the sun's harmful UV and UVB rays, keeping your eyes healthy and happy.
  4.  Lesser risk of losing glasses.: If you switch from your prescription to sunglasses when going outside, you're more likely to lose your glasses. When you only have one pair of glasses to worry about, it's much easier to keep track of them.
  5. Style:  There are a number of choices available. Many designs, tints, and shades suit every type of fashion, giving you the freedom to have eyewear that fits your style.


  1.  Decreased performance in cold weather: Photochromic lenses take longer to transition from clear to dark and vice versa during the cold months.
  2. Ineffectiveness in night driving: You can't rely on your light-adaptive lenses to protect you from dazzling headlights if you're driving along the highway late at night. Most of these glasses only react to UV rays emitted by the sun.
  3. May not be polarized: Not all transition glasses are polarized, so they may not provide complete protection from harsh glares in various environments, such as water, pavement, and snow.

 Who Should Wear Photochromic Glasses?

Photochromic glasses are a good option for on-the-go people and anyone who wears Rx glasses. Photochromic glasses will transition with you if you often move in and out of your home for work or love the outdoors. There's no need to switch your glasses for sunglasses or vice versa all the time. You'll also avoid those annoying days when you forget to bring your sunglasses with you when you're out and about. Photochromic lenses do the work for you and adapt to your lifestyle.

Ready to take the next step? At Ejones Opticals, it's easy. Shop for the prescription glasses you'd like to buy. Once you're on the product page, click the "SELECT YOUR LENS" button. Then you can choose the Photochromic Glasses option. Happy shopping!

People want eyecare and vision care affordable. So we are here to provide high-quality eye care.
K.S.R.T.C Complex, Payyanur
Copyright © 2020 Ejones Optical Centre | All Rights Reserved
People want eyecare and vision care affordable. So we are here to provide high-quality eye care.
K.S.R.T.C Complex, Payyanur
Copyright © 2022 Ejones Optical Centre | All Rights Reserved