ISSN: 0973-7510

E-ISSN: 2581-690X

Research Article | Open Access
Jyoti Chauhan1, Narinder Kaur1, Harit Kumar1 , Rosy Bala1 and Richa Dhiman2
1Department of Microbiology, Maharishi Markandeshwar Institute of Medical Sciences and Research, Maharishi Markandeshwar (Deemed to be) University, Mullana, Haryana, India.
2Department of Ophthalmology, Maharishi Markandeshwar Institute of Medical Sciences and Research, Maharishi Markandeshwar (Deemed to be) University, Mullana, Haryana, India.
Article Number: 8182 | © The Author(s). 2023
J Pure Appl Microbiol. 2023;17(2):891-899. https://doi.org/10.22207/JPAM.17.2.15
Received: 20 October 2022 | Accepted: 18 March 2023 | Published online: 21 April 2023
Issue online: June 2023
Abstract

In developing countries, infectious keratitis being the probable cause of preventable blindness, also have a varied epidemiological profile. This study was conducted to know the microbiological profile, risk factors, epidemiology and antimicrobial susceptibility pattern of bacteria isolated from patients with a corneal ulcers. A total of 193 patients who were clinically diagnosed with cases of infective keratitis in the Department of Ophthalmology were included in the study. The sample collected by an ophthalmologist was received in the Microbiology department. All the demographic details and relevant clinical data were noted. The bacterial identification and antimicrobial susceptibility were done using automated methods while the fungal identification was done using the conventional method (Vitek2 Compact system, BioMerieux). Out of 193 patients, 69% were male and 31% % were females. The Majority of cases were from the age group 41- 50 years. Of 193 cases, 83 (43%) showed microbial etiology in culture. Of 83 culture positive cases, 55 (66.3%) were fungal and 28 (33.7%) were bacterial. The most common isolated fungus was Fusarium species detected in 24 (28.9%) cases followed by Aspergillus species in 14 (16.8%) cases. Gram positive bacteria were predominantly isolated from cases of infective keratitis. Staphylococcus aureus was the most common isolated bacteria in 12 (14.4%) out of 83 positive cases followed by Coagulase negative Staphylococcus. Pseudomonas aeruginosa was the most common Gram negative bacteria isolated from the cases. Among the topical antimicrobials, both Gram positive bacteria as well as Gram negative bacteria showed maximum sensitivity to levofloxacin. Proper knowledge of the clinical presentation and etiological agents aided with microbiological examination is necessary in order to effectively treat corneal ulcers and prevent further complications that can lead to blindness.

Keywords

Keratitis, Fungal, Bacterial, Antibiotic Susceptibility

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© The Author(s) 2023. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.