Is blue light special? (part 4 of 4)

Posted by on Feb 18, 2009 in Intraocular lenses (IOLs), macular degeneration | 0 comments

You’ve now read a summary (by no means exhaustive) of the arguments for and against using a blue-blocking tint in IOLs.  So, is it a thumbs up or thumbs down?  As you might have guessed from the first paragraph of the first post in this series, there is no straighforward answer. Those who are strongly in favor of using a yellow tinted IOL cite the evidence supporting an association of macular degeneration with shorter-wavelength blue...

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Is blue light special? (part 3 of 4)

Posted by on Feb 17, 2009 in Intraocular lenses (IOLs) | 0 comments

In part 3 of my 4 part series on blue-blocking IOLs I am going to discuss the reasons why it might not be such a great idea to implant a blue-blocking IOL into the eye. Color perception concerns If you have ever tried on a pair of blue-blocking sunglasses, do you remember your initial impression?  Many people find the yellowing of their world to be a bit disconcerting.  Contrast is usually notably improved, but at what cost?  I...

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Is blue light special? (part 2 of 4)

Posted by on Feb 16, 2009 in Intraocular lenses (IOLs), macular degeneration | 0 comments

In my last post I introduced the controversy concerning blue light filtering IOLs.  You may be asking yourself, “If it’s good for skiers and helps with contrast sensitivity, why wouldn’t I want an IOL to block the blue rays of light?”  Tomorrow I’ll address that question. First, let’s look at the reasons touted to block the far blue spectrum of light and clarify that no one is suggesting that all blue...

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