Pseudoexfoliation syndrome (PEX) is characterized by the deposition of a distinctive fibrillar material in the anterior segment of the eye and was first described in 1917 by Lindberg. It is frequently associated with open angle glaucoma, known as pseudoexfoliation glaucoma, which is one of the most common identifiable forms of secondary open angle glaucoma worldwide. Despite extensive research, the exactchemical nature of the fibrillar material is unknown. It is believed to be secreted multifocally in the iris pigment epithelium, the ciliary epithelium, and the peripheral anterior lens epithelium.

Inclusion Criteria:

• Phakic patients presenting to Ophthalmology outpatient clinic Of Assiut University Hospital.

Exclusion Criteria:

• Patients with previous intraocular surgery.

patients who will be diagnosed with pseudo-exfolian syndrome