Number of patients (50 patients surveyed) who had ever heard of, ever used, or were currently using tear or saliva substitute treatments available in the United Kingdom
| Product | Ever heard | Ever used | Currently using |
| Tear substitute treatments | |||
| Hypromellose eye drops1-150 | 33 | 32 | 20 |
| Viscotears | 22 | 19 | 13 |
| Lacri-Lube | 13 | 9 | 3 |
| Sno tears | 12 | 8 | 4 |
| Liquifilm tears | 11 | 8 | 3 |
| Minims artificial tears | 9 | 7 | 1 |
| Tears Naturale | 9 | 6 | 1 |
| Ilube | 9 | 5 | 1 |
| GelTears | 3 | 2 | 1 |
| Hypotears | 2 | 0 | 0 |
| Saliva substitute treatments | |||
| Oralbalance | 21 | 19 | 9 |
| Glandosane spray | 20 | 19 | 7 |
| Saliva Orthana spray | 20 | 18 | 4 |
| Saliva Orthana lozenge | 16 | 12 | 1 |
| Salivix pastilles | 15 | 14 | 7 |
| Luborant spray | 5 | 4 | 1 |
| Salivace spray | 3 | 3 | 0 |
| Saliveze | 1 | 0 | 0 |
↵1-150 Including Isopto Alkaline and Isopto Plain eye drops.