The purpose of using Combigan Ophthalmic Solution is to treat ocular hypertension and glaucoma conditions characterized by increased pressure in the eyes This prescription medicine works by reducing the fluid pressure in the eye known as the aqueous humor It is important to use Combigan Ophthalmic Solution specifically in the affected eye according to the dosage and duration prescribed by the doctor Prior to using the medicine it is recommended to wash your hands Carefully read the label for instructions before using the solution Additionally it is vital to complete the full course of treatment even if you start to feel improvement without skipping any doses