Cataract surgery may also be referred to as lens replacement surgery, and as the name suggests involves the removal of the natural lens and replacement with an artificial one. Cataract surgery is performed by an ophthalmologist. Cataract surgery is advisable prior to lens opacity precluding detailed fundus examination. Phacoemulsification is the preferred surgical technique.
Cataract surgery is more complicated in patients with diabetes overall. The basement membrane of the lens (or lens capsule) is known to be thicker in patients with diabetes, which is similar to the thickened vascular basement membrane in these subjects. This thickened capsule is more easily crumbled and accidental rupture during lens extraction (cataract surgery) seems to be more common in patients with diabetes. Lens capsule changes may also affect performing capsulorrhexis (removal the capsule of the lens from the eye during cataract surgery by shear and stretch forces) during phacoemulsification3 .
Patients with diabetes have a higher risk of complications after cataract surgery compared to nondiabetics.