Question

is photochromic thread very
expensive?​

Answer 1

Answer:

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Explanation:

While the average pair of prescription eyeglasses costs less than $200, a pair with photochromic lenses could cost $400-$650 or more. And pre-made, non-prescription safety glasses or sunglasses with photochromic lenses can cost as much as $200-$400.

Answer 2

Answer:

Yes....pohotochromic thread is expensive.....costs about 3 US dollars.....

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