Adjunctive hyperbaric oxygen in pseudomonas keratitis

Hyperbaric oxygen (HBO) has been reported as an adjunctive treatment for various corneal conditions.1,2 We report a case of contact-lens associated Pseudomonas keratitis which we treated adjunctively with hyperbaric oxygen. A 30-year-old female presented with pain and progressive blurring in the left eye. She was wearing daily disposable contact lenses when she was splashed with muddy water in the face whilst mountain-biking. Left visual acuity on presentation was 6/12. A 4 mm × 4 mm superior corneal ulcer with underlying infiltrate was noted. Corneal scrapings were obtained before commencing hourly topical gentamicin 0.9% and cephalothin 5%. A heavy growth of Pseudomonas aeruginosa sensitive to ceftazidime, gentamicin, ciprofloxacin, imipenem, piperacillin, ticarcillin and tobramycin was cultured. On the second day of admission, visual acuity deteriorated to …