[The effect of tofisopam and tinctura leonuri on the color-discrimination function in young humans].
Eksp Klin Farmakol. 2005 May-Jun;68(3):56-9. PMID: 16047683
Enhanced anxiety state is accompanied by limitation of the color-discrimination function of retina in young humans. Chronic administration of tofisopam (grandaxin) or tinctura leonuri decreased anxiety and significantly improved the color discrimination function of retina with respect to all four colors studied. It is suggested that this improvement is related to the drug action upon the GABAergic processes both in the retina and in the related cerebral structures.