Our customer service co-ordinators are available Monday to Friday, 9am to 5pm, to take customer orders for all products in our comprehensive portfolio, from prisms, lenses, vision tests and occluders, to world-leading Tonosafe disposable prisms and the gold-standard Perkins Mk3 hand-held tonometer. The team can also assist with orders and providing information on our surgical portfolio of reusable and single-use instruments and procedures & implants, including the John Weiss range of gold-standard micro-surgical instruments.