Clear-lens extraction as a treatment for primary angle closure

Glaucoma is a multifactorial spectrum of diseases in which progressive optic nerve damage leading to blindness occurs with raised intraocular pressure as the main risk factor. The outflow of fluids through the trabecular meshwork decreases when the iris moves forward and comes into contact with it. This condition is called “angle closure” and can lead to glaucoma damage if intraocular pressure remains sufficiently raised. When no other cause besides anatomical predisposition is present for the iridotrabecular contact, the condition is classified as primary angle closure, and if glaucomatous optic neuropathy is present it is classified as primary angle-closure glaucoma.