When intraocular pressure increases, the optic nerve can become damaged. This condition is known as glaucoma or “black water.” The optic nerve is responsible for receiving images from the retina and transmitting them to the brain for visual processing. If the optic nerve is damaged, the person may suffer from visual impairment or blindness. Glaucoma can affect individuals from childhood to adulthood. Skilled doctors at Negah Hospital can diagnose and treat this potentially blinding yet preventable disease. The hospital is equipped with modern diagnostic technologies, including perimetry, UBM, and various specialized lasers and surgical equipment for glaucoma treatment.