The Autodrop Eye Drop Guide helps solve the problems encountered by many eyedropper users, who involuntarily blink or who sometimes just miss the eye. Simply clip the Autodrop to the top of the eye drop container after the cap has been removed. The Autodrop will then fit right over the eye. Special lip holds the lower lid down to prevent blinking. Unique pinhole directs eyesight upward and away from the descending drops.Autodrop Eye Drop Guide can be used in conjunction with the Autosqueeze Eye Drop Bottle Squeezer #AMI 209.Customer's have reported that this product does not work with the small glaucoma eye drop bottles.