Inclusion Criteria:  Patient whose age ≥ 18 years Patient with primary or secondary open angle glaucoma Patient who has undergone a SPNP or XEN procedure in solo French speaking patient  Exclusion Criteria:  Angle closure Less than 6 months follow-up History of eye filtering surgery included Patient under guardianship or curatorship Patient deprived of liberty Patient under court protection Patient objecting to the use of his/her data for this research