Catalogue Number: 2469
Proclear Contact Lens Blister
Category: Spectacles and lenses
Sub-Category: Contact lenses and accessories
Corporation: Biocompatibles Ltd./ Biocompatibles Eyecare Inc
Year Of Publication/Manufacture: 1990s
Time Period: 1940 to 1999
Place Of Publication/Manufacture: Farnham, Surrey UK/Norfolk, Virginia, USA
Publisher/Manufacturer: Biocompatibles Ltd./ Biocompatibles Eyecare Inc
Description Of Item: Contact lens blister with rounded top 52 x 33 x 11 mm with the wording Proclear compatibles (omafilcon A), Contents: One sterile soft contact lens for daily wear, 38% Omafilcon A, 62% water immersed in borate buffered solution. Caution: Federal Law prohibits dispensing without a prescription, Lens parameters (8.7/14.2/-0.75), Expiry date 2006/03, Lot Number, Biocompatibles Ltd. UK GU9 8QL, Biocompatibles Eyecare Inc. Norfolk, VA 23507, USA on the central part of the label. The margin of the label has the words Not to be sold individually in English, French and Italian.
Historical Significance: Omafilcon A was one of the first polymers which attempted to mimic the ocular surface. It is composed of HEMA and 2-methacryloyloxyethyl phosphorylcholine (PC) polymers crosslinked with ethylene glycol dimethacrylate. PC is similar to phospholipids (e.g., phosphatidylcholine), which are molecules found naturally in human cell membranes. Omafilcon A is claimed to reduce tear evaporation.
How Acquired: Donated by Karingal Optical
Condition: Very good
Location: Archive Office. Cabinet One Drawer 16