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 |