Evaluation of corneal endothelial changes after uneventful phacoemulsification in diabetic and non-diabetic patients using specular biomicroscopy in relation to the level of glcosylated hemoglobin level

86 patients will be divided into two equal groups of diabetic and non-diabetic patients will undergo phacoemulsification of cataract will be evaluated thier endocelium before surgery and 3 weeks after surgery to detect the effect of level of glcosylated hemoglobin on the endothelial changes after uneventful phacoemulsification

Inclusion Criteria:

• Diabetics and non-diabetic patients undergo cataract surgery
• Age between 50-60 years old
• Corrected distance visual acuity<0.4
• Gender: both genders.

Exclusion Criteria:

• Chronic Ocular diseases (glaucoma,uveitis, amblyopia, strabismus,keratoconus, corneal opacity).
• corneal dystrophy History of previous keratitis or viral corneal infection. Corneal dystrophy Ocular trauma. Previous ocular surgery. Complicated cataract surgery