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 |