Most eye floaters are caused by age-related changes to the jelly-like substance (vitreous) inside your eyes. As the vitreous becomes more liquid, its microscopic fibers clump together and cast tiny shadows on the retina, which appear as floaters. Several medical conditions can also cause floaters.
The most effective methods of birth control are sterilization by means of vasectomy in males and tubal ligation in females, intrauterine devices (IUDs), and implantable birth control. This is followed by a number of hormone based methods including oral pills, patches, vaginal rings, and injections.
An Untested Ingredient. Since 1960, most birth control pills have contained two types of hormones: estrogen and progesterone. Since 2001, some birth control pills have altered this tried-and-true formula by replacing the traditional form of progestin with a new and different synthesis, called drospirenone.