Betimol is categorized as a beta-adrenergic blocking medication (more commonly known as a beta blocker). As the name implies, such medications work by blocking beta receptors in the body. Beta receptors are located in a number of places within the body, including the eyes. Betimol lowers the pressure in the eye by decreasing the amount of fluid produced by the eye (known as aqueous humor).
Betimol is not approved for children or adolescents, as it has not been adequately studied in these age groups.
On occasion, your healthcare provider may recommend using Betimol for something other than high eye pressure or open angle glaucoma (this would be known as an "off-label" use). At this time, there are no universally-accepted off-label uses for the eye drops.