Glaucoma is one of the leading causes of blindness in the world. According to the Turkish Ophthalmological Association, only 550,000 people are diagnosed with glaucoma, a quarter of all patients with the disease. Glaucoma irreversibly affects the optic nerve. Thus, the earlier the disease is detected, the easier it will be to provide adequate treatment to prevent blindness. Thus, a good diagnosis is the first step towards an appropriate treatment.