Bi-Curve Micro Lens Trial Set (PMMA)
Maker and role
Hirst Contact Lens Limited, Manufacturer
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Object detail
Accession number
2018.1.6
Description
Bi-Curve Micro Lens Trial Set. These Micro Corneal trial sets were used extensively to assess the best fitting lens on the patient's cornea. The lenses were made from standard PMMA (polymethyl methacrylate).
A rectangular hinged-lid box with a singular metal clasp at the front. The box has an egg-shell coloured covering. “HIRST MICRO LENS / TRIAL SET” is stamped in gold in the centre of the lid. “Bi-Curve” is printed in black at the bottom right. On the underside of the box is a yellow and black label in the top left. The printed text reads “DEPARTMENT OF PSYCHOLOGY / DO NOT USE / WITHOUT INSTRUCTIONS”. Below there is another label, this is blue and white. The label is partially torn off. Handwritten in blue is “m 2 / Drawer 1”.
Inside is a plastic tray with four rows of circular holes that contain contact lenses. Each hole has a different number allocated to it. The numbers are arranged sequentially from 7.2 to 8.8. There is a total of 11 contact lenses. There is a rubber suction tool at the bottom left in a long oval shape. There is an empty space for a second tool on the right. There is a hand-written card in the box which reads “Bi Curve fitting / Set – 1963”. There is second piece of card with printed green text which is titled “BI CURVE TRIAL SET”. There are four lists titled “Base / Curve, Secondary / Curve, Optic / Dia., O.A. Dia”.
A rectangular hinged-lid box with a singular metal clasp at the front. The box has an egg-shell coloured covering. “HIRST MICRO LENS / TRIAL SET” is stamped in gold in the centre of the lid. “Bi-Curve” is printed in black at the bottom right. On the underside of the box is a yellow and black label in the top left. The printed text reads “DEPARTMENT OF PSYCHOLOGY / DO NOT USE / WITHOUT INSTRUCTIONS”. Below there is another label, this is blue and white. The label is partially torn off. Handwritten in blue is “m 2 / Drawer 1”.
Inside is a plastic tray with four rows of circular holes that contain contact lenses. Each hole has a different number allocated to it. The numbers are arranged sequentially from 7.2 to 8.8. There is a total of 11 contact lenses. There is a rubber suction tool at the bottom left in a long oval shape. There is an empty space for a second tool on the right. There is a hand-written card in the box which reads “Bi Curve fitting / Set – 1963”. There is second piece of card with printed green text which is titled “BI CURVE TRIAL SET”. There are four lists titled “Base / Curve, Secondary / Curve, Optic / Dia., O.A. Dia”.
Marks
HIRST MICRO LENS / TRIAL SET / Bi-Curve. Stamped
DEPARTMENT OF PSYCHOLOGY / DO NOT USE / WITHOUT INSTRUCTIONS Printed
m 2 / Drawer 1 Printed
7.2 7.3 [...] Printed
Bi Curve fitting / Set – 1963 Hand-written
BI CURVE TRIAL SET [...] Base / Curve, Secondary / Curve, Optic / Dia., O.A. Dia [...] Printed
DEPARTMENT OF PSYCHOLOGY / DO NOT USE / WITHOUT INSTRUCTIONS Printed
m 2 / Drawer 1 Printed
7.2 7.3 [...] Printed
Bi Curve fitting / Set – 1963 Hand-written
BI CURVE TRIAL SET [...] Base / Curve, Secondary / Curve, Optic / Dia., O.A. Dia [...] Printed
Media/Materials
Collection
Credit Line
Hirst Contact Lens Limited. Bi-Curve Micro Lens Trial Set (PMMA), 2018.1.6. The Museum of Transport and Technology (MOTAT).
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