Comparison of Retinal Perfusion Between Diabetic and Non-diabetic Patients With OCT Angiography After Cataract Surgery.

Exclusion Criteria

• •1. having known maculopathy, proliferative diabetic retinopathy(PDR), diabetic macular edema.
• •2. with high myopia of spherical equivalent greater than -6.0 diopters or axial length (AXL) greater than 26 mm in either eye.
• •3. preexisting vein or artery occlusion,glaucoma, previous uveitis, a history of ocular trauma, laser treatment, intravitreal injections or intraocular surgeries.
• •4. patients who had complications during cataract surgery.
• •Elimination Criteria:
• •1. poor compliance
• •2. voluntary withdrawal
• •3. any other kind of situation that researchers consider not suitable for further study.