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Microbiologic analysis of aqueous humor in phacoemulsification
1Department of Ophthalmology, School of Medicine, University of Harran, Sanliurfa, Turkey.
Japanese Journal of Ophthalmology
|July 21, 1999
Summary
Phacoemulsification cataract extraction significantly reduces anterior chamber contamination. This microbiologic survey found lower contamination rates with this surgical technique, indicating improved ocular safety.
Area of Science:
- Ophthalmology
- Microbiology
- Surgical Techniques
Background:
- Cataract extraction is a common surgical procedure.
- Maintaining aseptic conditions during surgery is crucial to prevent intraocular infections.
- Phacoemulsification is a widely used technique for cataract removal.
Purpose of the Study:
- To conduct a microbiologic survey of anterior chamber fluids post-cataract extraction.
- To assess the contamination rate of the anterior chamber after phacoemulsification.
- To correlate surgical technique with anterior chamber contamination.
Main Methods:
- Aspirated anterior chamber fluid from 101 patients (126 eyes) undergoing phacoemulsification.
- Microscopic examination and bacterial/fungal cultures performed on aspirated fluids.
- Colony counts determined for positive cultures.
Main Results:
- Positive cultures obtained from 8.14% (9/110) of anterior chamber fluid samples.
- Coagulase-negative staphylococci were the most common isolates.
- Colony counts ranged from 2-10 to 10-40 colony-forming units per mL.
Conclusions:
- Phacoemulsification cataract extraction is associated with a lower rate of anterior chamber contamination.
- These preliminary findings suggest improved ocular safety with this technique.
- Further studies in larger populations are warranted to confirm these results.