Rigid Contact Lenses in Flat 'Mailer' Case

Catalogue Number: 3963
Rigid Contact Lenses in Flat 'Mailer' Case
Category: Spectacles and lenses
Sub-Category: Contact lenses and accessories
Year Of Publication/Manufacture: 1990s
Time Period: 1940 to 1999
Description Of Item: Translucent flat 'mailer' case 50 mm x 50 mm x 8 mm with a label adhered to the face containing patient name and lens parameters for the Tetracurve lens of grey tinted PMMA material contained in the left compartment. Lens power Plano
Historical Significance: PMMA (Poly methyl methacrylate acrylate) a material of Dk 0 and refractive index1.429 was the original plastic used for the manufacture of contact lenses. It has been superseded in most cases by gas permeable materials.
How Acquired: Donated by Colin Bates
Date Acquired: 20/11/2017
Condition: Good
Location: Archive Office. Cabinet One Drawer 16

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