Table 4

Culture and antibiotic sensitivity results of vitreous samples of endophthalmitis cases

Culture resultsIntracameral moxifloxacinSusceptibility to antibiotics
NoYesMoxifloxacin
N (%)
Ceftazidime
N (%)
Vancomycin
N (%)
Gentamycin
N (%)
CONS1108 (72.8)6 (54.5)10 (90.1)3 (27)
Staphylococcus aureus918 (80)5 (50)9 (90)5 (50)
Streptococcus species303 (100)2 (66.6)3 (100)2 (66.6)
Haemophilus species202 (100)2 (100)*–1 (50)
Klebsiella species101 (100)1 (100)*–1 (100)
Proteus species101 (100)1 (100)*–1 (100)
Clostridium species101 (100)01 (100)*–
No growth887
Total1168
  • Susceptible break points for major isolated organisms (Clinical Laboratory Standards Institute guidelines): Moxifloxacin (5 ug): CONS 28 mm, Staphylococcus aureus 24 mm, Streptococcus sp. 18 mm; Ceftazidime (30 ug): CONS 25 mm, S. aureus 22 mm; Streptococcus sp. 24 mm; Vancomycin: CONS 4 ug/mL (MIC), S. aureus 2 ug/mL (MIC); Streptococcus sp. 17 mm (30 ug); Gentamycin (10 ug): CONS 15 mm, S. aureus: 15 mm, Streptococcus sp. 15 mm.

  • *In-vitro sensitivity tests for these antibiotics were not performed.

  • CONS, coagulase-negative staphylococci; MIC, minimum inhibitory concentration.