And another reference to the issues I'm referring to. I hope the surgeons don't have a learning curve with other products or are resistant to obtaining different lenses due to vendor relationships or suchlike.
http://www.eyeworld.org/article.php?sid=2123&strict=&morphologic=&query=
I thought it might help to show some citations rather than just merely saying 'I found some references on the subject'
http://www.nick-lane.net/blue%20blockers.pdf
http://www.eyeworld.org/article.php?sid=2122&strict=&morphologic=&query=
http://www.amo-romania.com/Document_Files/HealthyBlueLight_87rjgj.pdf
I've done some research and it does suggest possible reduced contrast in low light - in the blue end of the spectrum - so I'm now in a quandary about whether to pull out of the surgery unless the surgeon can find me an equivalent lens that isn't blue blocking.
I've got a huge investment in visual astronomy equipment. Some of my lenses cost $1k alone and I spent a year building a 16" newtonian reflector - so I'd be gutted to find out that I lost sensitivity on the faint extended astronomical objects rendering my equipment useless.
I bet the studies with regards to patient satisfaction don't have many astronomers working in scotopic conditions - it's not simply walking around at night on a lit street.
I wasn't worried about colour perception per se. I was worried about how tinting affects the eyes low light contrast sensitivity in what I believe is termed scotopic conditions. Astronmers use averted vision which mostly activates the rods (don't cite me on that - I'm no expert).
The yellow-tinted Acrysof IOLs are manufactored by Alcon. All of the studies that found no problems associated with these lenses were funded and carried out by representatives of Alcon. On the other hand, all the studies that did find problems associated with the yellow-tinted lenses were funded and carried out by representatives of AMO, Alcon's major corporate rival. (I conducted research when I was a grad student, and I know that you can manipulate the design of a study so that it's much more likely that you'll get the results that you're looking for.) I could find no credible evidence that the blue light-blocking feature helped to prevent age-related macular degeneration.
The cataract surgeons I consulted here in Chicago only used Alcon IOLs. Apparently, it was just too expensive for the surgery centers to stock more than one brand of IOLs. I went ahead and got the blue-light blocking lenses, and I have been extremely happy with them. I have never had a problem related to color perception (although I've read one or two reports about other people who claimed that they did have problems.) There may be another issue involved here. Strangely, the intensity of the yellow tint is related to the power of the IOL on a continuum. IOLs used to correct very farsighted eyes have the most intensely yellow tint; those used to correct very nearsighted eyes have the least tint. (I was very nearsighted before cataract surgery.)
So you will have to weigh your priorities before making a decision. You are very farsighted, so you would need IOLs with the most intense yellow tint. On the other hand, a toric IOL is the most reliable way to correct significant astigmatism (and I believe that the Acrysof toric IOL is currently the best toric IOL available.) Of course, you could also get an IOL by another manufacturer (maybe a monofocal Tecnis lens made by AMO) and have limbal relaxing incisions to reduce your astigmatism. Or you could get Tecnis monofocal IOLs and wear glasses with an astigmatism correction.