Varifocals with transitions coating failing.?!


Question: Varifocals with transitions coating failing.?
Have worn varifocals with brown transitions(coating or laminated?) for many years with no problems until my current pair. Recently noticed that they no longer go dark in strong sunlight. They were bought 2 years ago at Specsavers. Took them in to Specsavers and they just mumbled something about the glasses having been in the sun!!
Can the coating fail with time or is this particular failure due more to poor lens manufacture in this instance?

Answers:

Actually, it has nothing to do with how they were cleaned or if they were put away dark , or what brand they are, or where they are from.

Transitions just do that sometimes.

Specsavers didn't manufacture the original blanks that those lenses were ground down from , which already have the Transition qualities in it. It isn't a coating added after the fact. Transitions is a part of the original lens blanks.

They sometimes just stop reacting prematurely but also have a 2 year warranty for that because they know it happens sometimes.

It isn't your fault, nor is it Specsavers ' fault , but they should honor the manufacturers warranty...IF your prescription hasn't changed and it isn't over 2 years.

Optician



It depends on how you have been cleaning them, the wrong sort of cleaning can damage the coating.

Also if you take them off and put them away while still dark the reactivity of the coating diminishes.

The efficiency of the coating can also reduce with time.

If you haven't had an eye test for two years then you should have one now, I think it is a bit unusual for someone to wear the same glasses for more than two years anyway.



If you use alcohol or glass cleaner (windex type cleaners) or strong soap to clean your glasses, it can damage the coating, so can using a rough cloth. Most optical shops sell a special spray on cleaner which is safe to use on transition lenses. They should also have given you a soft lens cloth to clean your glasses.

Since it is two years, I can understand them not and I'm pretty sure the glasses cannot be re-coated. I've had transition lenses that lasted for 4 or more years with no problem. The idea that the sun ruined your glasses is ludicrous, since the transition is in place of having to wear prescription sunglasses.

EDIT: If Fooprinz is right, then the last 5 opticians I purchased eye glasses from lied to me. All of them told me not to use windex or other strong soap to clean the glasses.




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