What is the difference between photochromic and transition lenses?
Andrew Mclaughlin
Updated on March 03, 2026
Polarized lenses are permanently tinted dark. Photochromic lenses (of which Transitions® is the best-known brand) on the other hand, start out clear but turn dark in the bright sunlight. Then when you go back indoors (or stand in the shade or get in a car), they turn clear again.
Are photochromic lenses bad for eyes?
Photochromic lenses darken on exposure to sunlight and protect the eyes from ultraviolet radiation. Excessive exposure can cause permanent damage to the cornea and conjunctiva.
Can photochromic lenses be tinted?
You can tint your photochromic lenses any colour you want. Tinted lenses stay one colour all the time, no matter where they are worn. They can be a solid, uniform colour or gradient, fading from top to bottom. Tinted lenses can be had in almost any shade you can imagine and in all different lens materials.
Are tinted glasses bad for your eyes?
Glasses with lenses tinted the wrong color for a particular activity or that are tinted too heavily may reduce visibility by blocking too much visible light or distorting the wearer’s perception of colors. Continuing to wear glasses that have lenses that are too darkly tinted can result in over-sensitivity to light.
Can you add tint to existing eyeglasses?
If you have an old pair of prescription glasses you would like to tint but you do not want to spend a lot of money having them professionally colored, you can try RIT dye at home. Therefore, you can use it to tint your eyeglasses as well. The tinting process will only work on plastic eyeglasses.
Why are photochromic lenses not suitable for driving?
Regular photochromics don’t work behind a car windscreen because they are activated by UV light and windscreens blocks UV. Transitions Drivewear DOES activate behind the windscreen because it reacts to both visible and UV light, so the lenses will darken in bright light and lighten in low light.
Which is better photochromic or transition?
Many people choose to use anti-reflective coating on their photochromic lenses to enhance their performance. Anti-reflective coating allows a greater amount of light to pass through the lenses to provide sharper vision in low-light conditions, like driving at night.
Why do celebrities wear tinted glasses?
According to the Federal Aviation Administration, these colors “enhance vividness and minimize scattered (blue and violet) light.” But this curious trend is clearly more about image than vision. The glasses dealers I spoke with all felt that celebrities helped give this look liftoff.
What color are photochromic lenses made of?
Corning created the first mass-produced glass photochromic lenses in the 1960s and continues to produce glass photochromic lenses in gray and brown tints. Thin & Dark (Corning) — Corning’s Thin & Dark lenses include a gray tint and are up to 30 percent thinner and lighter than traditional glass photochromic lenses, according to the company.
What is the difference between photochromic and thin and dark sunglasses?
Thin & Dark (Corning) — Corning’s Thin & Dark lenses include a gray tint and are up to 30 percent thinner and lighter than traditional glass photochromic lenses, according to the company. Photochromic sunglasses are primarily for outdoor wear.
What brands of photochromic lenses are available in America?
There are many brands of photochromic lenses available in America. The most popular one, and the one that is most often cited when talking about photochromic lenses, is Transitions Optical.
Do photochromic lenses work when in the car?
Because most windshield glass protects from UV radiation, photochromic lenses usually do not work when in a car. You’ll see a similar effect to testing your Polarized lenses. There is no difference between photochromic lenses and Transitions lenses.