Glaucoma in which the angle of the anterior chamber is open and the trabecular meshwork does not encroach on the base of the iris.

Synonyms: Simplex, Glaucoma, Glaucoma, Open-Angle, Open Angle Glaucoma, Glaucoma, Simple, Glaucoma, Open Angle, Glaucoma, Pigmentary, Chronic Primary Open Angle Glaucoma, Compensative Glaucoma, Glaucoma, Primary Open Angle, Open Angle Glaucomas, Glaucoma, Secondary Open Angle, Simplices, Glaucoma, Open-Angle Glaucomas, Primary Open Angle Glaucoma, Glaucoma, Compensated, Glaucoma Simplex, Open-Angle Glaucoma, Pigmentary Glaucoma, Secondary Open Angle Glaucoma, Compensated Glaucoma, Glaucoma, Compensative, Simple Glaucoma