Distribution of aetiological agents in 97 cases with chronic dacryocystitis according to quality of discharge
| Micro-organisms isolated | Number of isolates (percentage of samples) | p Value | ||||
| Copious purulent or mucous discharge (n=46) | Minor mucopurulent discharge (n=51) | Copious v minor discharge | ||||
| Gram positive organisms: | 40 | 52 | 0.03 | |||
| Staphylococci | 26 (56.5) | 35 (68.6) | ||||
| Streptococci | 9 (19.6) | 10 (19.6) | ||||
| Gram positive rods | 5 (10.9) | 7 (13.7) | ||||
| Gram negative organisms: | 24 | 1 | 0.00 | |||
| Haemophilus sp | 7 (15.2) | — | ||||
| Enterobacteria | 12 (26.1) | — | ||||
| Other Gram negative organisms | 5 (10.9) | 1 (2.0) | ||||
| Anaerobic organisms: | 10 | 5 | 0.09 | |||
| Propionibacteriumsp | 8 (17.4) | 4 (7.8) | ||||
| Other anaerobic organisms | 2 (4.3) | 1 (2.0) | ||||
| Yeast | 1 (2.2) | 1 (2.0) | 0.73 | |||
| No micro-organism | 3 (6.5) | 7 (13.7) | 0.20 | |||