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Microbiome of the Eye

Microbiome of the Eye

The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...

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Related Experiment Video

Updated: Jul 2, 2026

Corneal Epithelial Abrasion with Ocular Burr As a Model for Cornea Wound Healing

Corneal Epithelial Abrasion with Ocular Burr As a Model for Cornea Wound Healing

Published on: July 10, 2018

Recurrent corneal erosions causing bacterial keratitis.

Sandy Pham-Vang¹, David R Hardten

¹Minnesota Eye Consultants PA, Minneapolis, Minnesota, USA. sandy_pvang@yahoo.com

Optometry (St. Louis, Mo.)

|August 30, 2008

Summary

Bacterial keratitis, a serious eye infection, can arise from corneal epithelial defects, especially in those with recurrent corneal erosions. Prompt, aggressive treatment is crucial to prevent vision-threatening complications.

Area of Science:

Ophthalmology
Infectious Diseases
Corneal Surgery

Background:

Epithelial defects increase susceptibility to bacterial keratitis.
Recurrent corneal erosions pose a higher risk for infectious keratitis due to repeated epithelial defects.
Differentiating infectious from non-infectious inflammatory conditions with stromal infiltrate and epithelial defects is clinically challenging.

Observation:

A 32-year-old woman with anterior basement membrane dystrophy and recurrent corneal erosions presented with acute symptoms including redness, pain, and photophobia.
Ophthalmic examination revealed a significant corneal epithelial defect with a dense, milky-white stromal infiltrate and anterior chamber inflammation.
Clinical presentation suggested a potentially severe infectious or inflammatory process affecting the cornea.

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Findings:

Laboratory analysis confirmed bacterial keratitis caused by Staphylococcus aureus.
The patient's presentation highlighted the potential for severe bacterial infection in the context of pre-existing corneal conditions.
Microbial keratitis requires immediate and assertive management.

Implications:

Bacterial keratitis is a visually threatening condition requiring urgent and aggressive treatment.
Early intervention in bacterial keratitis is essential to mitigate severe complications and preserve vision.
Clinicians must maintain a high index of suspicion for infectious keratitis in patients with epithelial defects and stromal infiltrates.