Can I still have cataract surgery if I have a sore throat, earache and sinus pressure?

It depends. If you always have these symptoms and they have been diagnosed and managed and are not new or serious then you may proceed. However, if these are new symptoms they need to be evaluated by your primary care physician before cataract surgery should be done. In almost all cases cataract surgery is elective (a non-emergency surgery). If you have an active infection or other uncontrolled medical conditions cataract surgery should be postponed.