Endogenous endophthalmitis is an intraocular infection caused by haematogenous spread of microorganisms from distant foci. It accounts for 2-8% of all cases of endophthalmitis. The common causative organisms include Staphylococcus aureus, Streptococcus pneumoniae, Pseudomonas andEndogenous Endophthalmitis is relatively rare but sight threatening intraocular infection caused by haematogenous spread of micro organisms from a distant focus of infection elsewhere in the body. It accounts for 2-8% of all cases of endophthalmitis.1 It can affect patients of any age or sex. Endogenous endophthalmitis usually occurs in immunocomromised subjects although cases have been reported among immunocompetent patients. The predisposing factors include chronic metabolic diseases like diabetes mellitus, chronic renal failure, malignancy, acquired immuno deficiency syndrome (AIDS), intravenous drug abuse or after invasive procedures.2 Studies have reported that nearly 90% cases of endogenous endophthalmitis occur in patients having some or the other predisposing factor but increasingly cases have been reported in the literature among apparently healthy individuals. Dental surgery, contaminated intravenous fluids, enteric fever, gastroenteritis and intravesicular injections of M.bovis or Bacillus Calmette Guerin for bladder carcinoma have been reported as risk factors in the immunocompetent subjects.
3-5The common causative organisms include Staphylococcus aureus and Streptococcus pneumonia. Although cases of Pseudomonas and Klebsiella endophthalmitis have been reported among immunocompetent subjects. 6,7 Common fungal isolates are Candida and Aspergillus. 4 We report a case of endogenous endophthalmitis in an immunocompetent subject after intravenous fluid therapy for gastroenteritis.
Case ReportA twenty eight year old female presented with rapidly progressive loss of vision in the left eye for one week associated with mild pain. She was apparently healthy with no history suggestive of any autoimmune disease, immunosuppression or chronic systemic illness. There was no history of anorexia, weight loss, nausea, headache, fever, hearing loss, skin wounds, ulcers of mouth or genitalia, ocular trauma or previous ocular surgery. History of intravenous drug abuse and other risk taking behaviour were also excluded. One week prior to onset of symptoms, the patient developed an attack of acute gastroenteritis for which she was given intravenous dextrose normal saline (DNS) by some health care professional in rural settings. She was relieved of the gastrointestinal symptoms but developed diminution of vision in the left eye two days after intravenous fluid infusion. On examination her visual acuity in right eye was 6/6 and in left eye was hand moments only. Slit lamp examination of left eye revealed mild flare and 2+ cells in anterior chamber. Fundus examination showed the presence of vitreous exudates extending to posterior pole near macula. Subretinal abscess occupying the posterior pole was also present (Figure 1a & b). Ocular exam...