This study reports the effect of a moderate level of hypoxia on human color discimination. We found a generalized loss of color vision affecting both red-green and blue-yellow discrimination at an altitude of 12,000 feet. Although the residual color discrimination at this altitude was within age-matched, sea-level norms, a statistically significant increase over sea level error scores was measured on the Farnsworth-Munsell 100-Hue test and the Pickford-Nicolson anomaloscope. An analysis of psychophysical and electrophysiological studies indicates that hypoxia acts by depressing retinal ganglion cell activity and that it can affect photopic visual processes as well as scotopic vision. We conclude that studies evaluating man's visual performance at altitude must consider post-receptoral processes.
Credit for this goes to cheerleader, she posted it in another thread.
Our HD color changes, for those of us who have them, could be measured pre- and post-procedure on the Farnsworth-Munsell 100-Hue test and the Pickford-Nicolson anomaloscope.
I think the HD analogy might hold true for other people but with the sort of blockage I had, it was more LSD than HD.
Color changes are still holding up, although I am not as shocked by it.
I was able to braid and fuss over my daughter's hair this morning. I normally would not do this because my arms get heavier as they are held up; they did indeed get heavier, not as bad as usual.
I've also either had improvements in the ability to taste or I had the best vanilla yogurt mixed with blueberry granola with flax ever made this morning. It seems to be specifically fruit flavors, as orange juice at the hotel shocked me every time.
Improvements in urinary urgency. Better balance, noticeable when getting dressed. Numbness still gone from my left arm and it feels odd to me.
Fatigue is greatly reduced but not gone. Vivid dreams for the second night in a row. My husband used the word miracle again this morning, for those who are tracking his impressions.
My neck soreness is getting much better but I still have a bit of a headache. I haven't taken tylenol yet today but I think I will now for the headache.
My daughter brought home a cold from NY (it must've been from Manhattan? There are no germs in Brooklyn....) and my sons both caught a virus here in MN, so odds are that I'll catch either the Manhattan bug or the MN one. So far so good, though.