MATERIALS AND METHODS The study included 30 eyes of 30 patients diagnosed with POAG and 30 eyes of 30 patients diagnosed with PEX glaucoma who presented to Glaucoma Unit of Izmir Katip Celebi University Atatürk Training and Research Hospital between August 2014 and February 2015. The control group included 30 eyes of 30 healthy individuals with similar age distribution.