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"Offset" Contact Lenses - pat No 634448
ARCHIVAL ITEMS
newsletter
Shiels Limited
Europe: United Kingdom, England, Lancashire, Salford
c.1950
paper
overall: 240 mm x 183 mm

Technical Bulletin from a contact lens manufacturer. Portrait format, printed in blue on three sides of white paper, folded. Describes a range of haptic lenses with hyperbolic rather than spherical curvature, with a slightly longer radius and offset centre of rotation. Includes information on fitting, transition, offset toroidal lenses and suggested trial sets, with prices.


2022.28

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