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| Title | Maker | Date Made | |
| Persecon E keratoconus (PEK) contact lens | CIBA Vision | Late 1980s | View |
| Persecon E keratoconus (PEK) contact lens | CIBA Vision | Late 1980s | View |
| Persecon E keratoconus (PEK) contact lens | Titmus Eurocon | 1980s? | View |
| Persecon Gas Permeable contact lenses | Titmus Eurocon | 1977 | View |