Focus Disposable Soft Contact Lenses Toric-Visitint
 Catalogue Number: 2417 Focus Disposable Soft Contact Lenses Toric-Visitint Category: Spectacles and lenses Sub-Category: Contact lenses and accessories Corporation: Ciba Vision Corporation Year Of Publication/Manufacture: 1998 Time Period: 1940 to 1999 Place Of Publication/Manufacture: Pulua Batam, Indonesia Publisher/Manufacturer: Ciba Vision Corporation, Duluth, Georgia, USA Description Of Item: Two blister packs in 'man' or 'tortoise' shape 55x35x8 mm each containing one soft toric contact lens with the words 'Toric Visitint' and Focus on the face. A description of the contents appears also in much smaller font. The lens parameters, batch number and expiry date apppear in black in the centre of the face. The lenses are examples of the 8.9 base curves and plus and minus lenses. Historical Significance: Ciba Vision launched the first toric disposable soft contact lenses in 1992, 1998 marked the change from the initial square blister (Ref Cat No. 2416) to the so-called man or tortoise shape. The blue handling tint was also introduced at that time.The clear lenses had location marks at 3, 6, and 9 0'clock. The front surface was spherical and the back surface toroidal in design. The lens material was Vifilcon A, a 55% water content material and a development of the earlier Bionite material. How Acquired: Donated by Karingal Optical Condition: Very good Location: Archive Office. Cabinet One Drawer 16 |