Rose-colored clip on sunglasses to avert eye strain when using the computer?

Posted on 2010-01-01
Last Modified: 2012-05-08
I have anti-glare prescription glasses I use for the computer to reduce eyestrain.
I'm still experiencing it however, and am looking for other solutions.

I was thinking about purchasing some clip-on sunglasses that are rose-colored to use on top of my anti-glare prescription glasses to help reduce eyestrain further. Has anyone here done this and do you think it could work? Or did you use a different tint? I was hoping to avoid the need to purchase bran new prescription glasses like Gunnars.
Question by:ctangent
    LVL 33

    Expert Comment

    It might help a little. My glasses (prescript) are tinted a redish-purple, but turning down the Brightness on the monitor helped more. You might need to tweak the Contrast also.
    And I still get some eyestrain on long sessions.
    You can also try making the font a little larger.
    LVL 17

    Expert Comment

    Don't see why rose-colored reduces eyestrain.

    I'm no expert on eyestrain.
    Just the kid of a retired photographer who worked on a color enlarger, and understands a little about the human visible spectrum.

    Rose is halfway between red & magenta:

    Magenta is an equal mix of red + blue.

    According to the hexadecimal color value (further down in the link), rose is red + half-blue. So a rose-colored filter is blocking out colors of light in the middle of the visible spectrum, while admitting full red + half of the blue. Since red & blue are at opposite ends of the visible spectrum, they have different focal lengths. (Look at the focus ring on an old 35mm camera. Infrared has different settings because of the difference in light wavelengths.)

    I don't see how filtering out mid-spectrum colors, while admitting both extreme ends of the spectrum, would help reduce eyestrain.

    Author Comment

    According to this rose tint reduces eyestrain:

    Gunnars supposidly reduce eyestrain by a combination of anti-glare coating and yellow tint:
    LVL 33

    Accepted Solution

    I am happy with mine, but some people I know say a different color works better for them.
    But even with the glasses, I can still feel the difference when working on a system where the monitor is using Default Brightness, compared to mine with it turned down.
    LVL 17

    Assisted Solution

    Nice research.
    Based on that, you're right.

    I just think statement made in the link is incomplete:

    "Rosy tints increase contrast by blocking blue light."

    According to my other research, rose partially blocks blue light. But not mentioned in that link is that rose completely blocks all other colors as well.

    The visible spectrum is:

    ROY-G-BIV = Red Orange Yellow Green Blue Indigo Violet

    Regarding gunners using yellow tint, that's different. Yellow allows only yellow to pass through, while blocking all other colors. That's a single color of the visible spectrum coming through. Having a single color come through (all others blocked) makes more sense to me in preventing eyestrain.

    Rose is different because it admits two colors of light (red and blue - at almost opposite ends of visible spectrum) to pass through.

    I've been skiing with rose colored goggles. Shadows cast by moguls are illuminated by the sky, which is blue. The sunlit side is all colors of the spectrum. Rose goggles cause the sunlit side to appear red-shifted, while the shadow side is blue-shifted. That increases contrast, and thus visibility while skiing.

    But here we're talking about "eyestrain" on a two-dimentional screen. That (I think) is different.

    Anyway, I've already admitted I'm not any expert on eyestrain, so I think I'm going to back off for now.
    LVL 26

    Assisted Solution

    by:David Brugge
    I support the point that coral47 made. There is nothing magic about tinted lenses. (Depending on the color) they either increase or reduce contrast by blocking some wavelengths other than other (as Tiras25 has pointed out)

    While you can search for a lens that suits you, this make take a while and it may be difficult measuring the effectiveness of one shade against another. It seems that it would be easier to simply adjust the monitor to a comfortable level.

    It would be something else entirely if you had to deal with a lighting condition over which you had no control, but  I assume you can change the monitor settings.

    It reminds me of the guy that put 200 watt light bulbs in his house and complained that the rooms were too bright. Then he asked what kind of sunglasses he should get.

    Just sayin'

    Author Comment

    I'm not sure if adjusting the monitor anymore will help. I already have the brightness the lowest it can go on this monitor. If it is too low I can't see and then i squint more which just exacerbates the strain.

    I can adjust the color tone, gamma, and individual color saturation levels however. Warm colors, cool colors.
    LVL 33

    Assisted Solution

    >> ...brightness the lowest it can go...

    Okey Dokey. Then wait till you get the clipons before doing much more tweaking. Depending on how dark the rose is, you will probably  just have to do it again.
    I lean toward "cool colors" myself, but try a little of both and see what works best for you.
    LVL 33

    Expert Comment

    Thank you much.   : )

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