Risks, Identification, and Antibiotic Susceptibility Against High Prevalence of Bacterial Infection in Contact Lens Solutions

Rana S. Hasan ¹,  Sawsan M. Alomari ², Roaa A. Thamer ³, Mohammed Fadhil Haddad ^4*

This study determiend the microbial contamination in contact lens solutions for preventing eye infections and improving lens safety practices.

Abstract

Background: Contact lens wear has become increasingly common for vision correction and cosmetic purposes. However, it also causes risks of microbial contamination leading to ocular infections. The aim of our study was to investigate the bacterial contamination in commercial contact lens solutions. Method: A total of 33 samples were collected and analyzed for bacterial presence using both phenotypic and molecular methods. Phenotypic diagnosis involved culturing samples on specific media and utilizing the Vitik system. Results: Our results showed the presence of various bacterial groups in contact lens preservation solutions, with Pseudomonas aeruginosa and Staphylococcus epidermidis being the most prevalent at 27.2% and 21.2%, respectively. The highest percentage of infections occurred in the age range of 12-20 years (41%), followed by 21-30 years (22%), 31-40 years (19%), 41-50 years (13%), and 51-60 years (5%). Regarding education level, individuals with primary education showed a higher percentage of eye infections (63%) compared to those with secondary education (27%) or higher education (10%). A higher percentage of infections was observed among individuals wearing lenses for 24 hours (57%) compared to those wearing them for 12, 6, or 1 hour, at 22%, 14%, and 7% respectively. Conclusion: In conclusion, the study demonstrated the importance of adherence to proper lens care practices to improve lens safety and reduce microbial contamination. Effective measures are essential to mitigate the risks associated with contact lens wear and maintain optimal eye health.

Keywords: Pseudomonas, Staphylococcus, Contact lenses, microbial contamination, antibiotic susceptibility, eye infections, disinfection solutions.

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