Those with the yellow-tinted lenses were less likely to report cyanopsia than those with the clear lenses.
3.
Cyanopsia, if unaccompanied by any other sign or symptom, is not an indication of any disease or disorder.
4.
The author of " Viagra and vision " attributes cyanopsia after taking sildenafil to diminished enzyme activity, thereby sensitizing the retinal rod cells.
5.
They also found that no one reported cyanopsia three months after the cataract operation, suggesting that some form of neural adaptation or colour constancy had taken place.
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