Varichrome Rigid Contact Lens in Flat 'Mailer' Case
 Catalogue Number: 3497 Varichrome Rigid Contact Lens in Flat 'Mailer' Case Category: Spectacles and lenses Sub-Category: Contact lenses and accessories Corporation: Gelflex Laboratories Year Of Publication/Manufacture: 1996-1998 Time Period: 1940 to 1999 Place Of Publication/Manufacture: Perth, Western Australia Publisher/Manufacturer: Gelflex Laboratories Description Of Item: White flat 'mailer' case 50 mm x 50 mm x 8 mm labelled Gelflex Laboratories Australia on the face with a label adhered to the back containing trial lens and lens parameters for the varichrome aspheric rigid lens contained in the right lens compartment. Historical Significance: The varichrome rigid contact lens material was a photosensitive material the tint of which darkened when exposed to ultra violet light in a similar manner to spectacle lenses like 'photogray' and ' transitions'. The lens in the image shows a difference in tint as only part of the lens was exposed to ultra violet light just prior to taking the image. How Acquired: Donated by Colin Bates Date Acquired: 19-02-2018 Condition: Good Location: Archive Office. Cabinet One Drawer 16 |