Diagnostic set of the ChromaGen haploscopic contact lens system for improving defective colour vision, consisting plastic briefcase containing of 28 vials, 7 large coloured lenses, computer disk, 'ChromaGen Clinical Procedures' booklet by DA Harris, and 4 vials in plastic net tubing, used by The Corneal Laser Centre, 1997. Diagnostic set of the ChromaGen haploscopic contact lens system for improving defective colour vision
