Table 1.
Bacterial Growth upon Drop Bottle Inversion of 90° and 45°, Before and After Contamination of the Nozzles
| Bottle Position | |||||
|---|---|---|---|---|---|
| Before Contamination (Control) | After Contamination (Experimental Group) | ||||
| Brand Of Eye Drops*,† | Group No. | 90° | 45° | 90° | 45° |
| 1.1 | − | − | + | − | |
| 1.2 | − | − | − | − | |
| 1.3 | − | − | + | + | |
| 1.4 | 1 | − | − | − | + |
| 1.5 | − | − | + | + | |
| 1.6 | − | − | − | − | |
| 2.1 | − | − | − | + | |
| 2.2 | − | − | + | + | |
| 2.3 | 1 | − | − | + | + |
| 2.4 | − | − | − | + | |
| 2.5 | − | − | + | + | |
| 2.6 | − | − | − | + | |
| 3.1 | − | − | − | − | |
| 3.2 | 1 | − | − | + | + |
| 3.3 | − | − | − | − | |
| 3.4 | − | − | + | + | |
| 3.5 | − | − | − | + | |
| 3.6 | − | − | + | + | |
| 4.1 | − | − | + | + | |
| 4.2 | − | − | − | + | |
| 4.3 | 1 | − | − | + | + |
| 4.4 | − | − | + | + | |
| 4.5 | − | − | + | + | |
| 4.6 | − | − | − | − | |
| 5.1 | − | − | + | + | |
| 5.2 | − | − | + | + | |
| 5.3 | 1 | − | − | + | + |
| 5.4 | − | − | + | + | |
| 5.5 | − | − | + | + | |
| 5.6 | − | − | + | + | |
| 6.1 | − | − | + | + | |
| 6.2 | − | − | + | + | |
| 6.3 | − | − | + | + | |
| 6.4 | 1 | − | − | + | + |
| 6.5 | − | − | + | + | |
| 6.6 | − | − | + | + | |
| 7.1 | − | − | + | + | |
| 7.2 | − | − | − | + | |
| 7.3 | 2 | − | − | + | + |
| 7.4 | − | − | − | − | |
| 7.5 | − | − | − | + | |
| 7.6 | − | − | − | − | |
| 8.1 | − | − | − | − | |
| 8.2 | − | − | − | − | |
| 8.3 | 2 | − | − | − | − |
| 8.4 | − | − | − | − | |
| 8.5 | − | − | − | − | |
| 8.6 | − | − | − | + | |
| 9.1 | − | − | + | − | |
| 9.2 | − | − | − | − | |
| 9.3 | 2 | − | − | − | − |
| 9.4 | − | − | − | + | |
| 9.5 | − | − | − | + | |
| 9.6 | − | − | + | + | |
Brand of eyedrop used: (1) Lacrifilm (carmellose sodium), (2) Optive (carboxymethylce-glycern-poly80), (3) Lacribell (dextran 70 0.1%; hypromellose 0.3%), (4) Adaptis (carboxymethylcellulose), (5) Lacrilax (carmellose sodium), (6) Mirugell (polyethylene glycol 400; propylene glycol), (7) Hyabak (0.15% sodium hyaluronate), (8) Systane (0.3% propylene glycol), (9) Hylo Comod (0.1% sodium hyaluronate).
Preservative-containing: (1) Lacrifilm (carmellose sodium), (2) Optive (carboxymethylce-glycern-poly80), (3) Lacribell (dextran 70 0.1%; hypromellose 0.3%), (4) Adaptis (carboxymethylcellulose), (5) Lacrilax (carmellose sodium), (6) Mirugell (polyethylene glycol 400; propylene glycol), (8) Systane (0.3% propylene glycol); Preservative-free: (7) Hyabak (0.15% sodium hyaluronate), (9) Hylo Comod (0.1% sodium hyaluronate).