Hamilton-based ophthalmologist and Auckland University senior lecturer Dr James McKelvie is leading the charge, together with several of his ophthalmology colleagues, to combat the postcode disparity for cataract surgery and obtain better eye care for all in New Zealand. With RANZCO's backing, ophthalmologists are calling for a nationwide threshold for cataract surgery, but this is just a small part of what needs to happen to really begin to combat preventable blindness in New Zealand, said Dr McKelvie.