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Contact lens-associated microbial keratitis.

L D Ormerod, R E Smith

Archives of Ophthalmology (Chicago, Ill. : 1960)

|January 1, 1986

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Contact lens wear is linked to microbial keratitis, with Pseudomonas and Staphylococcus as common causes. Extended wear and bandage contact lens use show distinct infection patterns and risks of vision loss.

Area of Science:

Ophthalmology
Microbiology
Infectious Diseases

Background:

Microbial keratitis is a significant cause of vision impairment.
Contact lens wear is a known risk factor for microbial keratitis.

Purpose of the Study:

To analyze the trends and causative agents of microbial keratitis associated with contact lens wear over a 14-year period.
To identify specific risk factors, including bandage and extended-wear contact lenses.

Main Methods:

Retrospective analysis of 42 microbial keratitis cases linked to contact lens wear.
Identification of microbial pathogens through laboratory isolation.

Main Results:

Pseudomonas aeruginosa (40%) and Staphylococcus (31%) were the most frequent pathogens.

Related Experiment Videos

Bandage contact lens use was associated with quasi-commensal organisms and polymicrobial infections.

A notable increase in infections linked to extended-wear contact lenses was observed.

Conclusions:

Contact lens-related microbial keratitis presents diverse etiological patterns based on lens type.
Extended-wear and bandage contact lenses pose unique risks, potentially leading to severe visual outcomes.
Surveillance and awareness are crucial for preventing contact lens-associated microbial keratitis.