Talk:Palinopsia

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This article is not accurate. Color inversion is not rare; on the contrary negative afterimages are a central part of palinopsia (I should know, I have it). Furthermore duration of stimulus and intensity both have a large impact on the duration of the afterimage - it's just that the amount of exposure required to generate an afterimage is much less than in a normal person.

[edit] Palinopsia and vitamin D deficiency?

In the past the writer experienced Palinopsia. Tests by an opthalmologist and a neurologist didn't yield any explanation, other than an assurance that there was nothing seriously wrong. However, a routine blood test showed a severe vitamin D deficiency (possibly related to my vegan diet). The symptoms disappeared after taking a vitamin D supplement (non-animal based supplement is available). Excessive use of vitamin D supplements can also cause serious problems. If anyone wants to try this, they should consult a physician and test the Vitamin D level.Ilanko 10:29, 17 July 2007 (UTC)