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.
You can take birth control pills as long as you need birth control or until you reach menopause, as long as you're generally healthy. This applies to combination and progestin-only birth control pills for women who are nonsmokers and progestin-only birth control pills for younger women who are smokers.