My 7 yr old 90 lb. Lab has glaucoma, and pigmentary uveitis. The eye specialist in Pasadena rx was 70mls of glycerine divided into 4 parts; given over 15-20 minute in 1/4 cup of milk.. It worked to bring the pressure down. We had the pressure checked shortly after dosage was given. Dr is eye care for animals in Pasadena.