Chronic Postoperative Gram-Negative Endophthalmitis

An Epidemic of Chronic Pseudophakic Endophthalmitis Due toOchrobactrum anthropi: Clinical Findings and Managements of Nine Consecutive Cases

“…Our study indicated that the clinical presenting signs of O. anthropi endophthalmitis were similar to those of chronic endophthalmitis caused by other organisms, 1 – 8 because O. anthropi is a low-virulent gram-negative pathogen. However, the mean time interval between cataract surgery and the initial investigation was relatively shorter in O. anthropi endophthalmitis (6.8 weeks) than in P. acnes endophthalmitis (36 weeks) or P. oryzihabitans (16 weeks) reported by previous studies.…”

“…O. anthropi is widely distributed in the water sources, including normal saline and antiseptic solutions. 8 A contaminated irrigating solution was presumed to be the potential source of O. anthropi in our patients.…”

“… 1 – 5 Other low-virulent gram-negative pathogens also have been documented to cause a similar clinical entity. 7 , 8 Ochrobactrum anthropi is an aerobic, low-virulent, non-lactose-fermenting, gram-negative bacillus that is usually isolated from environmental and hospital water sources. 9 Of concern in managing patients infected with this organism is its antibiotic resistance to penicillins and cephalosporins.…”

Incidence, Clinical Features, Causative Organisms, and Visual Outcomes of Delayed-Onset Pseudophakic Endophthalmitis

“…The mean age of the 17 patients (10 males, 7 females) with delayed onset pseudophakic endophthalmitis was 66.5±2.4 years (range, 37-91 years). Of these 17 patients, 16 were Saudi and 1 was Bangladeshi. In 10 cases (59%), endophthalmitis occurred in the left eye.…”

Postoperative Alcaligenes xylosoxidans endophthalmitis: report of two cases

“…There are few reports of chronic postoperative endophthalmitis caused by A. xylosoxidans (3)(4)(5)(6)(7)(8) . Bacteria of the genus Alcaligenes are non-fermenting, gram-negative bacilli found in soil and water.…”