Eyebright Herb Extract: Introducing Bark Out Loud’s Tear Stain Eyebright Chewstix, a tasty dog treat that serves as a nourishing and protective solution for your dog's precious eyes. Made with fresh chicken, our treats are an exceptional blend of natural ingredients, including the powerful Eyebright Herb Extract. These treats help fight oxidative damage and promote optimal eye health, ensuring that your furry friend enjoys clear and vibrant vision.