Blue Light Anti Reflective Coating Glasses

Started 5 months ago | Questions
Mark H
Mark H Veteran Member • Posts: 3,821
Re: Anti Reflective Coating...
2

Billiam29 wrote:

Mark H wrote:

Billiam29 wrote:

I’m not sure what you’re considering the “front” surface, but anti-reflective coating only needs to be applied to the interior surface of eyeglass lenses. The surface facing your eyes. For eyeglasses there’s really no functional purpose to having it applied to the “exterior” surface that faces away from your eyes.

No.

The purpose of having anti-reflective coating on the front surface is to reduce the reflectivity of the spectacles to observers looking at the wearer.

For example, high refractive index materials (which enable thinner lenses) are increasingly 'reflective' - so this becomes a significant and undesirable issue.

So AR coating is partly about vision - and also, partly about 'appearance'.

I see your point and I definitely think it’s valid as appearance certainly is a large part of the overall eyeglass sales experience. To elaborate on my own perspective though, the appearance of eyeglasses to those that are not wearing the glasses isn’t a function of the anti-reflective coating.

It is an intended function (alongside the benefits to the wearer's vision).

It prevents the lenses from acting like semi-mirrors - which enables others to more clearly see the eyes of the wearer.

And, FWIW, it also increases the transmittance of the lens.

These are valued, sometimes important - and not insignificant - benefits.

It’s a cosmetic side benefit.

It's not merely 'cosmetic'.

In face to face communication people generally like to be able to clearly see another's eyes - and not be obscured by a veil of reflections.

From my perspective keeping light from the extreme periphery and rearwards of the lenses from reflecting into the wearer’s eyes is the core functional purpose if anti-reflective coatings.

From your perspective - except, your's is not the only perspective.

Now having said that, people commonly seem to spend absurd amounts of money for frames they think look nice while cheaping-out on the actual part of the glasses they look through with their eyeballs. So if anti-reflective coatings on both lens surfaces are pitched to make you “look nicer” that’s fine, but that’s marketing.

It not simply 'marketing'.

It's a legitimate, desirable and sometimes important function.

Have you never seen - for example - some TV presenter, or other. with lights, auto-cue, laptop screen, etc bouncing off the front of their glasses?

From my perspective that line of reasoning would be somewhat analogous to saying the nice looking expensive frames are changing the functionality of what the eyeglass frames are for, which they don’t. They just look nicer.

AR coating (in particular on the front surface) is not about just 'looking nicer'.

Batdude
OP Batdude Veteran Member • Posts: 5,089
Re: Blue Light Anti Reflective Coating Glasses
1

UPDATE:

I'm so glad I didn't throw my money away with those blue light blocking lenses

I found this video by accident:

https://www.youtube.com/watch?v=NkJY9bgLyBE

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sludge21017
sludge21017 Senior Member • Posts: 2,726
Re: What the spectrum of monitors really looks like

Wayne Larmon wrote:

sludge21017 wrote:

There is a big difference with windows blue light filter and the lenses. It's not the same visual effect. I still use the blue light blocker at night.

Well to be specific about my lenses and their technology used -read here and see if your company compares:

Everything to Know About Blue Light and Crizal Prevencia | CovalentCareers

And they confirm - not the same a windows blue light.

This link is possibly misleading. They show LED light with a spectrum of

Which is representative of 5000K LED bulbs. But LED bulbs aren't screens. This is how my NEC PA241W monitor measured (when displaying pure white):

My laptop has Mini-LED screen.

sludge21017
sludge21017 Senior Member • Posts: 2,726
Re: Blue Light Anti Reflective Coating Glasses
1

Batdude wrote:

UPDATE:

I'm so glad I didn't throw my money away with those blue light blocking lenses

I found this video by accident:

https://www.youtube.com/watch?v=NkJY9bgLyBE

I threw away $8? lol   I'm good with it.  enjoy your cataracts!

Bam Bam Rubble Junior Member • Posts: 28
Re: Blue Light Anti Reflective Coating Glasses
3

What did your Optometrist  recommend? Do you think everything on youtube is factual?

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Bam Bam Rubble

Austinian
MOD Austinian Forum Pro • Posts: 10,869
Re: Blue Light Anti Reflective Coating Glasses

Bam Bam Rubble wrote:

What did your Optometrist recommend? Do you think everything on youtube is factual?

Don't start the insults again, please.

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Bam Bam Rubble Junior Member • Posts: 28
Re: Blue Light Anti Reflective Coating Glasses
3

I thought that was a question. How could that possible be an insult?

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Bam Bam Rubble

Austinian
MOD Austinian Forum Pro • Posts: 10,869
Re: Blue Light Anti Reflective Coating Glasses
1

Bam Bam Rubble wrote:

I thought that was a question. How could that possible be an insult?

Easily. "Do you think the earth is flat?" isn't insulting?

Mainly, I'm hoping you don't go down the johnnyandedgar road this time.

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Robert Zanatta Senior Member • Posts: 2,037
Re: Blue Light Anti Reflective Coating Glasses

Bam Bam Rubble wrote:

Do you think everything on youtube is factual?

No, but that was.

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Bam Bam Rubble Junior Member • Posts: 28
Re: Blue Light Anti Reflective Coating Glasses
3

And you and Cacreeks talking about female masturbation in a post is acceptable forum conduct? Get real!!!!!!!!!!!!!!!!!!!!!!!!!!

Or is it based on who is doing what with whom.DO WEHAVE A DOUBLE STANDARD HERE?

Please provide a way to contact an authority figure to lodge a formal complaint.

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Bam Bam Rubble

Bam Bam Rubble Junior Member • Posts: 28
Re: Blue Light Anti Reflective Coating Glasses
3

That's, imo, an exception, based on what I have experienced. Simply an entertainment site.

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Bam Bam Rubble

Austinian
MOD Austinian Forum Pro • Posts: 10,869
Re: Blue Light Anti Reflective Coating Glasses
1

Bam Bam Rubble wrote:

And you and Cacreeks talking about female masturbation in a post is acceptable forum conduct? Get real!!!!!!!!!!!!!!!!!!!!!!!!!!

Huh? Whatever/whenever it was that you think violated a forum rule, did you click the "Complain" button? That's how I know someone objected to a post.

Or is it based on who is doing what with whom.DO WEHAVE A DOUBLE STANDARD HERE?

As you were told before more than once, it is based on the forum rule:

"Be civil. Anyone being rude, abusive, calling names or generally trying to stir up trouble will not be tolerated. If you think someone is wrong it may be because they are new. Don't jump on them, think first. If you are repeatedly abusive you will be banned from these forums."

Please provide a way to contact an authority figure to lodge a formal complaint.

I've never tried it, but I've read this should work:

https://www.dpreview.com/feedback

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Bam Bam Rubble Junior Member • Posts: 28
Re: Blue Light Anti Reflective Coating Glasses
3

I filed a formal complaint with the site administrators.

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Bam Bam Rubble

Austinian
MOD Austinian Forum Pro • Posts: 10,869
Re: Blue Light Anti Reflective Coating Glasses
1

Bam Bam Rubble wrote:

I filed a formal complaint with the site administrators.

OK.

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Batdude
OP Batdude Veteran Member • Posts: 5,089
Re: Blue Light Anti Reflective Coating Glasses

Austinian wrote:

Bam Bam Rubble wrote:

I thought that was a question. How could that possible be an insult?

Easily. "Do you think the earth is flat?" isn't insulting?

Mainly, I'm hoping you don't go down the johnnyandedgar road this time.

Dear lord is that who that is??  Now I got it and good thing you mentioned it where is that ignore button.

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Batdude
OP Batdude Veteran Member • Posts: 5,089
Re: Blue Light Anti Reflective Coating Glasses

Bam Bam Rubble wrote:

I filed a formal complaint with the site administrators.

Now that sentence is the true definition of irony.  Amazing.

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Batdude
OP Batdude Veteran Member • Posts: 5,089
Re: Blue Light Anti Reflective Coating Glasses
1

sludge21017 wrote:

Batdude wrote:

UPDATE:

I'm so glad I didn't throw my money away with those blue light blocking lenses

I found this video by accident:

https://www.youtube.com/watch?v=NkJY9bgLyBE

I threw away $8? lol I'm good with it. enjoy your cataracts!

That is amazing you HAVE to hook me up with your insurance

Mine doesn't cover blue light and it was $99 out of pocket and that's why I didn't get it I just wasn't too convinced.

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Ernie Misner
Ernie Misner Veteran Member • Posts: 7,450
Re: Blue Light Anti Reflective Coating Glasses

Batdude wrote:

UPDATE:

I'm so glad I didn't throw my money away with those blue light blocking lenses

I found this video by accident:

https://www.youtube.com/watch?v=NkJY9bgLyBE

If I were to try the blue blocking coating on lenses it would be because after having cataract surgery the blues just seem too bright to the point of being painful rather than eye damage.  An interesting video though, thanks.

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Austinian
MOD Austinian Forum Pro • Posts: 10,869
Re: Blue Light Anti Reflective Coating Glasses

Batdude wrote:

sludge21017 wrote:

Batdude wrote:

UPDATE:

I'm so glad I didn't throw my money away with those blue light blocking lenses

I found this video by accident:

https://www.youtube.com/watch?v=NkJY9bgLyBE

I threw away $8? lol I'm good with it. enjoy your cataracts!

That is amazing you HAVE to hook me up with your insurance

Mine doesn't cover blue light and it was $99 out of pocket

That's about what my provider wanted; my guess is that the $8 gets an ordinary tint, and the $99 gets a narrow-band selective blocker like this:

https://www.essilorusa.com/products/crizal/crizal-prevencia

and that's why I didn't get it I just wasn't too convinced.

I didn't get it either; I prefer to use Windows' Night Light function in the evenings.

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Austinian
MOD Austinian Forum Pro • Posts: 10,869
Re: Blue Light Anti Reflective Coating Glasses
1

Ernie Misner wrote:

Batdude wrote:

UPDATE:

I'm so glad I didn't throw my money away with those blue light blocking lenses

I found this video by accident:

https://www.youtube.com/watch?v=NkJY9bgLyBE

If I were to try the blue blocking coating on lenses it would be because after having cataract surgery the blues just seem too bright to the point of being painful rather than eye damage.

Yeah, the change in my color vision post-surgery was amazing, but I really like the bright colors; I'd forgotten how gorgeous a vivid blue sky could be!

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