Why choose a photochromic corrective lens?

How and when to use photochromic corrective lenses

How do they work? And when is the best time to use them? What’s better, photochromic or polarized?

Sum­mer is on our doorstep, and the sun is shin­ing for longer! It’s im­por­tant to pro­tect our eyes from sun­light. With pho­tochromic cor­rec­tive lens­es, the lens adapts to changes in light­ing con­di­tions.

But how do they work? And when is the best time to use them?

Pho­tochromic lens­es are lens­es that change col­or in re­ac­tion to sun­light. When ex­posed to UV light, they dark­en and change from or­di­nary cor­rec­tive lens­es to sun­glass lens­es. When ex­posed to UV ra­di­a­tion, such as sun­light, pho­tochromic cor­rec­tive lens­es un­der­go a re­versible chem­i­cal re­ac­tion that caus­es them to dark­en. When no longer ex­posed to UV light, they grad­u­al­ly re­turn to their ini­tial state of trans­paren­cy.


When should you use pho­tochromic lens­es?

Con­trary to what you might think, we’re not just ex­posed to UV light on sun­ny days. Even on a cloudy day sun­light fil­ters through and reach­es our eyes. These lens­es dark­en just enough to pro­tect our eyes from this ex­po­sure to UV light. With pho­tochromic cor­rec­tive lens­es, you won’t have to wor­ry about keep­ing a sep­a­rate pair of sun­glass­es with you, be­cause your pho­tochromic lens­es will adapt to every change in light­ing con­di­tions. This makes them per­fect for out­door ac­tiv­i­ties or when­ev­er you’ll be in vari­able light­ing con­di­tions. They pro­tect you from UV rays and re­duce glare. Pho­tochromic lens­es are avail­able in a range of col­ors, from the tra­di­tion­al grey and brown to bold­er col­ors like pur­ple, green, or blue.

Di­v­el Italia’s Fo­tochro­ma lens­es


FO­TOCHRO­MA is Di­v­el’s pho­tochromic lens made us­ing the most ad­vanced pho­tochromic tech­nolo­gies, so you get the most in­no­v­a­tive pig­ment re­ac­tions to chang­ing light­ing con­di­tions. Our 1.56-in­dex Fo­tochro­ma lens­es are avail­able in 6 fash­ion col­ors, the in­ten­si­ty of which changes as light­ing con­di­tions change. Avail­able in an el­e­gant shade of GREY, our 1.61-in­dex Fo­tochro­ma lens­es are made by way of ad­vanced spin coat­ing, which lays a su­per-thin coat­ing of pho­tochromic pig­ments across the sur­face of the lens. This lay­er, pro­tect­ed be­neath a hard­en­ing treat­ment, ac­ti­vates ex­treme­ly quick­ly when ex­posed to sun­light.

Fo­to­col­or lens­es


The lens­es in our FO­TO­COL­OR col­lec­tion are pho­tochromic lens­es that start with a tint­ed base. They are made us­ing mono­fo­cal or pro­gres­sive TRAN­SI­TIONS® lens­es. Lens­es made with Tran­si­tions® tech­nol­o­gy adapt quick­ly when mov­ing from in­doors to out­doors, dark­en­ing su­per-fast when ex­posed to in­tense sun­light, while en­sur­ing vi­su­al com­fort and pro­tect­ing your eyes from UV rays. Our Fo­to­col­or lens­es come in 8 sol­id or gra­di­ent col­ors. They dark­en in uni­form tones of grey or brown. Our pho­tochromic lens­es with Tran­si­tions® tech­nol­o­gy au­to­mat­i­cal­ly adapt to changes in light, in­ten­si­fy­ing the col­or based on the light­ing con­di­tions.

What’s bet­ter, pho­tochromic or po­lar­ized?

Pho­tochromic lens­es are one of the best tech­nolo­gies be­cause they adapt to all light­ing con­di­tions, so that you al­ways get the best vi­sion pos­si­ble. How­ev­er, it is im­por­tant to know that pho­tochromic lens­es are dif­fer­ent from po­lar­ized lens­es in that their pro­tec­tive func­tion only ac­ti­vates un­der cer­tain con­di­tions and light in­ten­si­ties.

When dri­ving, for ex­am­ple, giv­en that a large part of the UV light is ab­sorbed by the wind­shield, pho­tochromic lens­es might not dark­en enough to pro­tect against glare. Wear­ing a pair of po­lar­ized sun­glass­es, on the oth­er hand, you get clear vi­sion even in glary con­di­tions, be­cause po­lar­ized lens­es re­duce glare from sun­light. Po­lar­ized sun­glass lens­es are de­signed specif­i­cal­ly to min­i­mize glare as they pro­tect our eyes from UV light. Po­lar­ized lens­es neu­tral­ize re­flect­ed light and oth­er sources of glare, while in­creas­ing con­trast for clear, well-de­fined vi­sion.

Not all pho­tochromic lens­es are made the same

You don’t nec­es­sar­i­ly have to wear po­lar­ized lens­es to pro­tect against glare when dri­ving.

Lens­es with Dri­vewear tech­nol­o­gy, which com­bines NuPo­lar po­lar­iza­tion with Tran­si­tions® tech­nol­o­gy, are pho­tochromic lens­es that pro­tect your eyes against the sort of blind­ing glare you can ex­pe­ri­ence when at the wheel, be­cause they dark­en even when look­ing through a wind­shield.


So the func­tion of po­lar­ized and pho­tochromic lens­es is dif­fer­ent, and their use will de­pend on the cir­cum­stances. For use in vari­able light­ing con­di­tions, choose pho­tochromic lens­es. But for pro­longed use out­doors in con­stant ex­po­sure to sun­light, po­lar­ized lens­es are the way to go.

How much do pho­tochromic and po­lar­ized lens­es cost? As a rule of thumb, de­pend­ing on the cor­rec­tive pow­er and coat­ings ap­plied, and with­out con­sid­er­ing spe­cial pro­mo­tions, the price of Tran­si­tions® lens­es can vary:

  • A pair of pre­scrip­tion lens­es should cost be­tween €500 and €700
  • A pair of stan­dard lens­es should cost be­tween €230 and €300

Our Fo­to­col­or lens­es are priced sim­i­lar­ly to Tran­si­tions® lens­es.

For our Fo­tochro­ma lens­es, re­tail prices will vary:

  • A pair of pre­scrip­tion lens­es should cost be­tween €350 and €500
  • A pair of stan­dard lens­es should cost be­tween €200 and €250 Oth­er func­tion­al coat­ings can also be ap­plied to give you the type of pro­tec­tion you need from your glass­es, from a stan­dard hard­en­ing treat­ment to our top-of-the-line Per­for­mance coat­ing.

How should you clean pho­tochromic lens­es? To see clear­ly, your lens­es need to be per­fect­ly clean and in good con­di­tion. This is why you need to clean your eye­wear dai­ly us­ing wa­ter, cleanser and a soft cloth or oth­er spe­cial clean­ing so­lu­tions or dis­in­fec­tants rec­om­mend­ed by your op­ti­cian. You should also keep in mind that added coat­ings not only im­prove the per­for­mance of your lens­es; they can also in­crease their dura­bil­i­ty and re­sis­tance to wear and tear. And you can ap­ply all our coat­ings to both pho­tochromic and po­lar­ized lens­es, in­clud­ing: Hard, Silken, Chro­ma, Silken White, Per­for­mance and Per­for­mance+.

Dis­cov­er our Fo­tochro­ma lens­es

Dis­cov­er our Fo­to­col­or lens­es