Alphagan reduces the amount of fluid in the eye, which decreases pressure inside the eye. Alphagan ophthalmic (for the eyes) is used to treat open-angle glaucoma or ocular hypertension (high pressure inside the eye).
Tobradex ophthalmic is used to treat bacterial infections of the eyes. Tobramycin is an antibiotic. It is used to treat bacterial infections. Dexamethasone is a steroid. Dexamethasone ophthalmic is used to treat the swelling associated with bacterial infections of the eye.