diff --git a/src/ontology/maxo-edit.owl b/src/ontology/maxo-edit.owl
index c6b0e79f..aeb90dc6 100644
--- a/src/ontology/maxo-edit.owl
+++ b/src/ontology/maxo-edit.owl
@@ -953,6 +953,7 @@ Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0001566>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0001567>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0001568>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0001569>))
+Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0001570>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0009003>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0009004>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0009005>))
@@ -11040,6 +11041,7 @@ SubClassOf(<http://purl.obolibrary.org/obo/MAXO_0001562> <http://purl.obolibrary
 
 # Class: <http://purl.obolibrary.org/obo/MAXO_0001563> (MIGS increase subconjunctival outflow)
 
+AnnotationAssertion(<http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/MAXO_0001563> "A MIGS that leads to increased subconjunctival outflow")
 AnnotationAssertion(dce:creator <http://purl.obolibrary.org/obo/MAXO_0001563> <https://orcid.org/0000-0001-7941-2961>)
 AnnotationAssertion(dce:date <http://purl.obolibrary.org/obo/MAXO_0001563> "2024-07-23T15:31:19Z"^^xsd:dateTime)
 AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/MAXO_0001563> "MIGS increase subconjunctival outflow")
@@ -11096,6 +11098,14 @@ AnnotationAssertion(dce:date <http://purl.obolibrary.org/obo/MAXO_0001569> "2024
 AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/MAXO_0001569> "hydrus microstent MIGS")
 SubClassOf(<http://purl.obolibrary.org/obo/MAXO_0001569> <http://purl.obolibrary.org/obo/MAXO_0001561>)
 
+# Class: <http://purl.obolibrary.org/obo/MAXO_0001570> (XEN glaucoma treatment system usage)
+
+AnnotationAssertion(Annotation(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> "PMID:35881761") <http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/MAXO_0001570> "A MIGS where a tube made of gelatin and glutaraldehyde is implanted. It is insterted ab internally inot the anterior chamber, then through the sclera into subconjunctival space forming a bleb.")
+AnnotationAssertion(dce:creator <http://purl.obolibrary.org/obo/MAXO_0001570> <https://orcid.org/0000-0001-7941-2961>)
+AnnotationAssertion(dce:date <http://purl.obolibrary.org/obo/MAXO_0001570> "2024-07-23T16:56:53Z"^^xsd:dateTime)
+AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/MAXO_0001570> "XEN glaucoma treatment system usage")
+SubClassOf(<http://purl.obolibrary.org/obo/MAXO_0001570> <http://purl.obolibrary.org/obo/MAXO_0001563>)
+
 # Class: <http://purl.obolibrary.org/obo/MAXO_0009003> (preimplantation genetic testing)
 
 AnnotationAssertion(Annotation(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> "NCBIBook:NBK5191") <http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/MAXO_0009003> "Genetic testing of one or more cells removed from early embryos conceived by in vitro fertilization and transferring to the mother's uterus only those embryos determined not to have the pathogenic variant(s)/chromosome anomaly(ies) of concern.")