Corneal Endothelial Assessment After Posterior Chamber Phakic Intraocular Lens Implantation

Inclusion Criteria: * Our inclusion criteria include: adults 18-35 years of age, myopia ˃ 6 D , anterior chamber depth (ACD) 2.85 mm or greater , an endothelial cell count of ≥ 2000 cells/mm2 and stable refractive history within 0.5 diopter for 1 year. Exclusion Criteria: * anterior chamber depth from endothelium \< 2.85 mm, previous or current systemic or eye disease , surgery or trauma, pregnancy and nursing.