Proclear Multifocal N Contact Lens Box
 Catalogue Number: 4031 Proclear Multifocal N Contact Lens Box Category: Spectacles and lenses Sub-Category: Contact lenses and accessories Corporation: CooperVision Year Of Publication/Manufacture: C 2015 Time Period: 21st C Place Of Publication/Manufacture: Hamble, UK Publisher/Manufacturer: CooperVision Description Of Item: White cardboard box 118 mm x 60 mm x 15 mm imprinted on face Proclear multifocal/PC Technology 6 contact lenses/ CooperVision in black and a multi-coloured design. The rear face lists the contents in 8 languages, Lot number, Expiry date 2017/08 and Made in UK, ends of box have L and R and lens parameters, 8.7/14.4/ +0.50/+2.00N imprinted. box is empty. Temporary storage Box A Historical Significance: Proclear Multifocal Contact Lenses were of both Centre Distance and Centre Near design and monthly disposable. The N on the lens labels indicates the Centre Near design.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 Colin Bates Date Acquired: 17/7/2017 Condition: Poor Location: Archive Room. East wall Unit 5 Cupboard |