The curative action of corn oil in healing the “spectacled eye” condition has been demonstrated. The identity of the factor in liver which prevents these symptoms with the other members of the vitamin B complex has been discussed. Direct and indirect evidence is offered that, besides the crystalline vitamins contained in the ration, the factor concerned is not identical with pantothenic acid, factor W and the factor preventing nutritional achromotrichia. A possible relationship of this factor to the so-called “accessory factor” preventing acrodynia and of this condition to the “type III” dermatitis of György and Eckardt is pointed out. Further, the relation of this condition to the deficiency of the essential fatty acids is discussed.