Incidence of Descemet Membrane Detachment Post GATT by AS OCT

In our study, which should include 30 eyes with OAG who underwent 360 GATT Screening for Descemet Membrane Detachment will be done by Anterior Segment Optical coherence Tomography using SD-OCT: Optovue RTVue (Optovue Inc., Fremont, CA, USA) for the angle day 1 post operative for all patients and 1 week post operative in cases with Descemet membrane detachment to check for spontaneous resolution. One month post-operative the patients underwent * Best corrected visual acuity (BCVA) using decimal. * IOP measurement using GAT.