Masters theses : Science

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    Isolation of Aerobic Bacteria Associated With Eye Infection and Their Susceptibility to Antimicrobial Agents
    (Al Neelain University, 2005-05) Hanadi Mohammed Abd El-Rhman
    Bacterial agents that caused ocular infection were studied in I60 patients. The age of patients ranged between 3 months- and 80 years. The prevalence of different types of eye infection was reported as conjunctivitis (38%), blepharitis (36%), blepharoconjunctivitis (18%), daeryoeystitis (3%), and keratitis (2%). The prevalence was found to be ll7 (73%) in males and 43 (27.8%) in females. The most susceptible age group was found between 3 months ~ l0 years than other age groups. The anaerobic culturing revealed isolation of only facultative anaerobic bacteria. The aerobic growths were identified as grain positive bacteria which were further identified as S!u_1.>/1y/0c0ccu.s' aureus (37%), Staphylococcus epiderrriidis (37%), Streptococcus" pneumoniae (lO%) \4 Streptococcus pyogcnes (3.3%), Streptococcus v/rida/is (2%), Bacillus subli/is (7.6%), and Corynebuclerium diphlheriue (4.3%). Grain-negative bacteria were identified as k/ehsiclla pneumoniae (26.4%), fzlcoli (16.1%), Enlerohacler spp (l6.l%), Haemophi/us irifluenzae (14.9%), 1’seudum0nu.s' aemginosu (10.3%), (.'r0/nubucler/mu vluluceum (6.9%), Citrobacterfrelmdii (4.6%), and /lcl/onhaci//u.\' spp (4.6%). The sensitivity of these organisms against different antibiotics was studied. The results showed that some bacteria like Staphylococcus aureus, Bacillus sub/I/is and Eco/I developed a resistance towards some antibiotics, like Cioxacillin, Ampicillin / sulbactam, co-trimoxazole. These results were compared with those using penicillin and chloramphenieol eye drops for the treatment of ocular infection beside other antibiotics.