<p>This preparation should be used with caution in patients with macular edema, aphakic patients, pseudophakic parients with a torn posterior lens capsule or in patients with known risk factors for macular edema.It should be administered with caution in patients subjected to spontaneous hypoglycaemia or to diabetic patients who are receiving insulin or oral hypoglycaemic agents.Caution should also be exercised to patients wearing contact lenses or drive and use machines.</p>