Using careprost, glaucoma is treated. It enhances the eye's ability to expel collected fluid. It thus lowers the raised pressure inside the eye. Careprost causes the growth and darkening of your eyelashes. Your iris's color and the skin surrounding it may both become darker. These effects could be long-lasting and more obvious if careprost is being used on only one eye. The use of careprost in children and adolescents is not advised because there is insufficient safety information. Thus, before using it, speak with your physician. If you are pregnant, suspect you may be pregnant, or want to become pregnant, let your doctor know before using careprost.