Geftinate causes vision related complications sometimes so your sister needs a full eye exam including retina
evaluation to make sure the cataract is responsible for loss of vision. If that is so and if the vision loss
is severe, she should consider cataract surgery
since the quality of life will improve. Surgery is performed under local anaesthesia or topical with only drops instilled in the eye. Make sure you tell your eye surgeon about the medical history since some drugs may interact with geftinate.