CIBA AOSept Contact Lens Case
 Catalogue Number: 4013 CIBA AOSept Contact Lens Case Category: Spectacles and lenses Sub-Category: Contact lenses and accessories Corporation: CibaVision Year Of Publication/Manufacture: 1990s Time Period: 1940 to 1999 Publisher/Manufacturer: CibaVision Description Of Item: Transparent light grey plastic barrel type contact lens case 57 mm x 30 mm diameter with cream octagonal shaped screw cap and hinged lens baskets on a central stem. Cap has a raised rectangular central section 20 mm x 8 mm with a vent hole approx. 1.5 mm in diameter and CIBA? embossed. The central stem has a grey ridged device fitted to the end. One of the lens baskets has L embossed. The barrel section has AOSEPT embossed vertically and a moulded 'fill line' 27 mm from the base. Temporary storage Box A Historical Significance: Cases of this type were included in AOSept Starter Kits. The vent hole allowed oxygen produced in the neutralisation of hydrogen peroxide to escape through a flap valve in the cap. The platinum coated ridged device provides a catalyst to neutralise the hydrogen peroxide in the AOSept solution. AOSept was originally developed by American Optical and purchased by Ciba before being included in the Alcon spin off. How Acquired: Donated by Colin Bates Date Acquired: 17/7/2017 Condition: Good Location: Archive Room. East wall Unit 5 Cupboard |