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How do colored contact lenses work without tinting your vision?

October 22nd, 2009 by admin Leave a reply »
MrKnowItAll asked:


I’ve always wondered how colored contact lenses work. Are they completely colored, or is there a clear spot in the center for the pupil?
If they are completely colored, wouldn’t blue contact lenses tint your vision blue, like sunglasses? If there is a clear hole for the pupil, how does the fact the pupil changes size affect things? I would think when the pupil got really small you would see a small circle of the original eye color around it, and when it got big it would tint the edge of your vision.

Donald
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1 comment

  1. twilight.denial says:

    Justin

    there is a clear hole in the center for your pupil, so you don;t see the color unless it slides over your pupil [like mine often does]
    i wear colored contacts in four shades, and yeah, when my pupil gets smaller, you can see a slight ring of the original color but the color on the contacts sort of fades at the inside edges so it almost blends in with your natural color.

    i found this on google, you can see the clear hole:

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