Physical properties of the tamponade agents tested
| Tamponade agents | Specific gravity (g/cm3) | Interface tension at 25°C against water (mN/m) | Viscosity (mPas) |
|---|---|---|---|
| *The solutions are made from mixing F6H8 with silicone oil. For example, 1 part by volume of F6H8 in 3 parts of silicone oil would give rise to a solution with a specific gravity of ((1×1.35)+(3×0.97))÷4 = 1.06. Similarly, 1 part of F6H8 in 5 parts of silicone oil give a specific gravity of approximately 1.03 and, lastly, 1 part of F6H8 in 9 parts of silicone gives a solution of specific gravity approximately of 1.01. All tamponade agents were provided by Fluoron, Neu-Ulm, Germany. | |||
| Perfluorooctane | 1.73 | 55.0 | 1.76 |
| F6H8 | 1.35 | 49.1 | 2.5 |
| Silicone oil | 0.97 | 35.4 | 5000 |
| Silicone oil | 0.97 | 35.4 | 1000 |
| F6H8-SiO solution* | 1.01 | 56.25 | 3167 |
| F6H8-SiO solution* | 1.03 | 45.43 | 1948 |
| F6H8-SiO solution* | 1.06 | 40.82 | 1387 |