Transitions, Reactions, Photochromic or Reactolight Lenses
New components and chemistry concerned in the most current generations from the lenses have made considerable progress in addressing the 2 fundamental criteria for selection :
More mature generations (and a few existing generations) retain a yellow or somewhat jaundiced hue even if not uncovered to ultra violet mild (indoors as an example). The latest generation Transitions are extensively regarded to be the top available and virtually totally obvious within the absence of ultra violet.
Most newer photochromatic lenses create a speedy changeover from gentle to darkish as they may be exposed to extremely violet - the real check and also the differentiation is the rate at which they regress from the darkest tint to clear. Once again Transitions lenses are extensively thought to be greatest in school within this regard.
Transitions lenses certainly are a extensively held trademark for any specific (newest) era of materials and technologies which can be mixed and offered beneath the "Transitions" manufacturer. Other (but equivalent) names will not be the identical, and are typically regarded to become not as very good, as they're from older technology photochromatic technologies.
Lastly - never expect your photochromatic lenses (regardless of which model or technologies) to create a lot of the difference whilst driving, because the windscreen of the vehicle is designed to soak up many of the UV before it enters the cabin - therefore the lenses within your eyeglasses have nothing to respond with. Should you need to have or would really like tinted lenses while driving, you happen to be better off obtaining two pairs of the same frame with prescription obvious and prescription tinted lenses.