<Ul> <Li> Beta blockers, the second most common treatment method for glaucoma, reduce the production of aqueous humor . They are relatively inexpensive and are available in generic form . Timolol, Levobunolol, and Betaxolol are common beta blockers prescribed to treat glaucoma . </Li> <Li> Alpha - adrenergic agonists work by decreasing production of fluid and increasing drainage . Brimonidine and Apraclonidine are two commonly prescribes alpha agonists for glaucoma treatment . Alphagan P uses a purite preservative, which is better tolerated those who have allergic reactions than the older BAK preservative in other eye drops . Furthermore, less selective alpha agonists such as (epinephrine) may decrease the production of aqueous humor through vasoconstriction of the ciliary body (only for open - angle glaucoma). </Li> <Li> Carbonic anhydrase inhibitors also decrease fluid production . They are available as eye drops (Trusopt and Azopt) and pills (Diamox and Neptazane). This may be helpful if using more than one type of eye medication . </Li> </Ul> <Li> Beta blockers, the second most common treatment method for glaucoma, reduce the production of aqueous humor . They are relatively inexpensive and are available in generic form . Timolol, Levobunolol, and Betaxolol are common beta blockers prescribed to treat glaucoma . </Li> <Li> Alpha - adrenergic agonists work by decreasing production of fluid and increasing drainage . Brimonidine and Apraclonidine are two commonly prescribes alpha agonists for glaucoma treatment . Alphagan P uses a purite preservative, which is better tolerated those who have allergic reactions than the older BAK preservative in other eye drops . Furthermore, less selective alpha agonists such as (epinephrine) may decrease the production of aqueous humor through vasoconstriction of the ciliary body (only for open - angle glaucoma). </Li> <Li> Carbonic anhydrase inhibitors also decrease fluid production . They are available as eye drops (Trusopt and Azopt) and pills (Diamox and Neptazane). This may be helpful if using more than one type of eye medication . </Li>

Which of these are the functions of the ciliary​ body