Related Experiment Videos
Conjunctival microbial flora in leprosy
1Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, Ansari Nagar, New Delhi.
Abstract:
Conjunctival sacs of seventy one leprosy patients, paramedical and medical personnel working in a leprosy home were cultured. None of these eyes had any pathology in the outer eye. Surprisingly, 46.2% of the eyes which showed a positive culture carried accepted pathogens; Staphylococcus aureus being the commonest. Determining the preoperative bacterial flora and their elimination before undertaking intraocular surgery is recommended.
Insights
A study found that over 46% of eyes in leprosy patients and staff carried common pathogens like Staphylococcus aureus, despite no visible eye issues. Preoperative bacterial screening and elimination are recommended before eye surgery.
Area of Science:
- Ophthalmology
- Microbiology
- Infectious Diseases
Background:
- Leprosy can affect various body systems, but ocular manifestations require careful consideration.
- The prevalence and type of bacterial flora in the conjunctiva of individuals associated with leprosy settings are not well-documented.
- Outer eye pathology was absent in the study cohort, highlighting subclinical colonization.
Purpose of the Study:
- To investigate the prevalence of bacterial colonization in the conjunctival sacs of leprosy patients and associated healthcare workers.
- To identify the specific bacterial species present in positive conjunctival cultures.
- To assess the implications of these findings for preoperative screening before intraocular surgery.
Main Methods:
- Conjunctival swabs were collected from 71 individuals, including leprosy patients and paramedical/medical personnel.
- Cultures were performed to identify bacterial growth.
- Absence of outer eye pathology was confirmed clinically.
Main Results:
- A significant proportion of eyes (46.2%) yielded positive bacterial cultures.
- Staphylococcus aureus was identified as the most frequent pathogen.
- No external ocular pathology was observed in any of the participants.
Conclusions:
- The conjunctival sac harbors a high rate of pathogenic bacteria in individuals linked to leprosy environments.
- Preoperative identification and eradication of bacterial flora are crucial to minimize infection risk during intraocular surgeries.
- This underscores the importance of comprehensive preoperative assessments in this patient population.