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| Title | Maker | Date Made | |
| 'Bondwell' opticians slide rule | C. W. Dixey & Son Ltd | c.1905 | View |
| Aristo 80148 optician's slide rule / Rechenstab fur Optik | Dennert & Pape | 20th c. | View |
| Aristo slide rule and case | Dennert & Pape | 20th c. | View |
| Bennett Slide Rule | G. Nissel & Company Ltd; Blundell Harling Ltd | 1970s? | View |
| Bennett Slide Rule | G. Nissel & Company Ltd | 1960s? | View |
| Bennett Slide Rule | G. Nissel & Company Ltd | 1950s? | View |
| circular slide rule for contact lens surfacing calculations | Mid 20th c. | View | |
| contact lens measuring rule | American Optical Co | Late 20th c. | View |
| contact lens measuring rule | Johnson & Johnson Medical Ltd | 2010 | View |
| contact lenses slide rule | Lunelle Soft Contact Lenses | Early 1990s | View |
| CSI Polycon - Vertex Distance Conversion | Syntex Ophthalmics Inc | 1980s | View |
| DuraSoft Optifit Toric - Vertex Distance Conversion | Wesley-Jessen Inc | December 1996 | View |
| Lunelle Soft Contact Lenses rule | Essilor; Lunelle Soft Contact Lenses | 1980s | View |
| Nissel (Bennett) contact lens slide rule | G. Nissel & Company Ltd | 1960s? | View |
| ophthalmic slide rule | Nitsche & Gunther | mid 20th c. | View |
| optometrist's slide rule | Carl Zeiss (Jena) | 20th c. | View |
| Orthops Rule | Raphael's Ltd | 20th c. | View |
| Orthops slide rule | Raphael's Ltd | 2nd quarter 20th c. | View |
| Orthops Slide Rule | Mid 20th c. | View | |
| Orthops Slide Rule | Raphael's Ltd | Mid 20th c. | View |
| Orthops Slide Rule | Raphael's Ltd | 2nd quarter 20th c. | View |
| Orthops Slide Rule | Raphael's Ltd | 2nd quarter 20th c. | View |
| Orthops Slide Rule used at Heriot Watt College | Raphael's Ltd | Mid 20th c. | View |
| Polycon II Initial Fitting Guide | Sola-Syntex Ophthalmics | Post 1985 | View |
| Prototype Ridley Slide Rule | Keeler | 1948 | View |
| Quadrante 74 slide rule | Lozza | Late 20th c. | View |
| Syze rule | Raphael's Ltd | 1930s? | View |
| Vertex Distance Conversion Calculator | Association of Dispensing Opticians; Stanleigh Rule Co. | 1960s | View |
| Vertex Distance Conversion Disc | Rayner | Mid 20th c. | View |
| Vertex Slide Rule | Obrig Laboratories (Great Britain) Ltd | 1960s? | View |