Comments on: HOA’s – irregular astigmatism – actual effect on vision.? http://www.boursicasoft.com/custom-lasik-eye-surgery/hoas-irregular-astigmatism-actual-effect-on-vision lasik, lasik eye surgery Sun, 27 Nov 2011 23:18:59 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Secret http://www.boursicasoft.com/custom-lasik-eye-surgery/hoas-irregular-astigmatism-actual-effect-on-vision/comment-page-1#comment-760 Secret Sun, 07 Feb 2010 12:39:59 +0000 http://www.boursicasoft.com/custom-lasik-eye-surgery/hoas-irregular-astigmatism-actual-effect-on-vision#comment-760 Your question is really complexed, and i doubt many people will be able to respond. I'm not sure if the problems you're describing is completely due to higher order astigmatism. Typically, comas, tetrafoil, and other Zernike Polynormial abberation will decrease your VAs more than the other qualities you've mentioned. The concept is that the higher order astigmatism dont effect your vision too much. They've developed intraocular lenses that have corrected most of it, and people have reported an acuity of 20/13. The halos and change in color sounds more of a lens problems to me. Usually, the yellowing of the lens will cause an increase in the scattering of light, and decreased overall contrast (although certain colors will seem more vibrant than others based on relativity.) Your question is all over the place. If you can filter out all the "what i know" part and just focus on your question.. people can answer your question more effectively.<br><b>References : </b><br>My professor writes the optics book that many schools in the US and europe use regarding optics. Your question is really complexed, and i doubt many people will be able to respond. I’m not sure if the problems you’re describing is completely due to higher order astigmatism. Typically, comas, tetrafoil, and other Zernike Polynormial abberation will decrease your VAs more than the other qualities you’ve mentioned. The concept is that the higher order astigmatism dont effect your vision too much. They’ve developed intraocular lenses that have corrected most of it, and people have reported an acuity of 20/13.

The halos and change in color sounds more of a lens problems to me. Usually, the yellowing of the lens will cause an increase in the scattering of light, and decreased overall contrast (although certain colors will seem more vibrant than others based on relativity.)

Your question is all over the place. If you can filter out all the "what i know" part and just focus on your question.. people can answer your question more effectively.
References :
My professor writes the optics book that many schools in the US and europe use regarding optics.

]]>