Combination Pupillary Distance (PD) Ruler and Occluder

Catalogue Number: 3642
Combination Pupillary Distance (PD) Ruler and Occluder
Category: Equipment
Sub-Category: PD ruler, pupillometer
Corporation: Designs for Vision
Year Of Publication/Manufacture: c 1995
Time Period: 1940 to 1999
Description Of Item: White plastic dumbbell shaped combination PD rule and occluder 194 mm x 47 mm. the central parallel sided section is printed with centimetre scales marked in millimetre graduations and telephone numbers on one face and a pupil diameter gauge and an N5 extract from the second verse of Dorothea Mackellar's 'My Country' on the other. The circular ends, designed as an occluder and a pinhole have a letter chart and Designs for Vision and logo on one face and a plain black surface on the other.
Historical Significance: A promotional piece of equipment provided by a supplier of ophthalmic instruments and equipment.
How Acquired: Donated by Robert Kaye
Date Acquired: 4/3/2014
Condition: Good
Location: Archive office. East wall shelves unit 3. Drawer 10

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