Isolation of Aerobic Bacteria Associated With Eye Infection and Their Susceptibility to Antimicrobial Agents
سناء عثمان يعقوب, هنادي محمد عبد الرحمن
كلية الدراسات العليا-جامعة النيلين · السودان
Bacterial agents that caused ocular infection were studied in 160patients. The age of patients ranged between 3 months- and 80 years.The prevalence of different types of eye infection was reported asconjunctivitis (38%), blepharitis (36%), blepharoconjunctivitis (18%),daciyocystitis (3%), and keratitis (2%). The prevalence was found to be117 (73%) in males and 43 (27.8%) in females. The most susceptible agegroup was found between 3 months — l0 years than other age groups.The anaerobic culturing revealed isolation of only facultativeanaerobic bacteria. The aerobic growths were identified as gram positivebacteria which were further identified as Staphylococcus aureus (37%),Staphylococcus epidermidis (37%), Streptococcus pneumoniae (10%),Streptococcus pyogcncs (3.3%), Streptococcus viridans (2%), Bacillussublilis (7.6%), and Corynebacterium d/phlheriae (4.3%). Gram-negativebacteria were identified as lclehsic/la pneumoniae (26.4%), l?.coIi(16.1%), Entcrobaclcr spp (16.1%), Haemophilus influenzac (14.9%),Pseudomonas aeruginosa (10.3%), Cromobacterium violaccum (6.9%),Citrobacterfrezmdii (4.6%), and Aclionbacillus spp (4.6%).The sensitivity of these organisms against different antibiotics wasstudied. The results showed that some bacteria like Staphylococcusaureus, Bacillus subtilis and E.c0li developed a resistance towards someantibiotics, like Cioxacillin, Ampicillin / sulbactam, co-trimoxazole.These results were compared with those using penicillin andchloramphenicol eye drops for the treatment of ocular infection besideother antibiotics.