Associations of Vitamin D Receptor ApaI and Tru9I Polymorphisms With the Risk of Primary Open-angle Glaucoma

Inclusion Criteria: * intraocular pressure greater than 22 mmHg with two or more medications wide anterior chamber angle glaucomatous optic neuropathy (Glaucomatous optic nerve damage was defined as cup-to-disc ratio higher than 0.7 or focal loss of the nerve fiber layer (notch) associated with a consistent glaucomatous visual field defect) visual field loss consistent with optic nerve damage and visual fields were performed by using standard automated perimetry Exclusion Criteria: * the presence of any secondary glaucoma including exfoliation syndrome or a history of ocular trauma high myopia macular degeneration other ocular diseases a known history of systemic diseases and administration of vitamin D3 or other analog