- Northern Laser Vision Centre is located in Chatswood, Sydney, Australia and perform PIK and LASIK refractive surgery to treat myopia, hyperopia, astigmatism, presbyopia, and other refractive errors, using Meditec Aesculap MEL 70 flying spot excimer laser equipment. Our staff are fully trained in ophthalmology, and opthalmic, corneal, and refractive surgery. ...www.nlvc.com.au