The tissue responsible for facilitating the drainage of aqueous humor within the eye is called the drainage angle. This specialized region serves as a crucial point for the outflow of the clear fluid from the anterior chamber of the eye. By providing a passage for the aqueous humor to exit, the drainage angle plays a vital role in maintaining optimal intraocular pressure and preventing the buildup of fluid within the eye. Proper function and patency of the drainage angle are essential for ocular health and the prevention of conditions associated with increased intraocular pressure, such as glaucoma.