Overview
Lens induced glaucoma occurs secondary to the development of a hyper-mature cataract (similar to image shown). In phacomorphic glaucoma, the formation of the cataract can push the iris forward or obstruct the flow of aqueous between the pupil border and anterior lens (pupillary block).
Other causes of lens-induced glaucoma include leakage of lens proteins from the hypermature cataract obstructing aqueous outflow known as phacolytic glaucoma. Glaucoma may also develop following cataract surgery due to disruption of the lens capsule leading to the leakage of lens particles that block aqueous drainage (lens-particle glaucoma) or produce an immune reaction against the lens proteins (phacoantigenic glaucoma).
References
Parivadhini A, Lingam V. (2014) Management of Secondary Angle Closure Glaucoma. J Curr Glaucoma Pract. 8(1):25-32.