Prototype PMMA contact lenses

Hirst Contact Lens Limited, Maker

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Maker and Role
Hirst Contact Lens Limited, Maker
Production Date
A small black octagonal hinged box with a blue and purple lined interior. The lenses were originally all housed inside. This is a collection of eighteen PMMA (polymethyl methacrylate) sample contact lenses. The lenses are various sizes. Parts 2 to 5 are larger lenses, dated to circa 1960. They each have a small hole drilled near the edge. This is called fenestration, which allows oxygen to enter the eye and allows better tear exchange - making the contact lens safer and more comfortable to wear. Parts 3 to 5 have a flat section in the centre. Part 6 is a small grey tinted lens. Parts 7 to 19 are smaller contact lenses, dated to circa 1968. Each lens has a number printed on the edge.
Processed Material
Processed Material/Synthetic/Plastic
Signature/Marks and Type
-6 Stamped
-5 Stamped
1 Stamped
4 Stamped
5 Stamped
7 Stamped
15 Stamped
13 Stamped
16 Stamped
17 Stamped
18 Stamped
20 Stamped
21 Stamped
Accession No
Credit Line
Hirst Contact Lens Limited. 1968
1960. Prototype PMMA contact lenses, 2018.1.25. The Museum of Transport and Technology (MOTAT).

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