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Ophthalmologic Manifestations of Escherichia Coli Workup

  • Author: Donny W Suh, MD, FAAP; Chief Editor: Hampton Roy, Sr, MD  more...
 
Updated: Feb 05, 2016
 

Laboratory Studies

The following studies are indicated in patients with suspected E coli infection:

  • CBC count with cell differentials
  • Blood agar
  • Sabouraud dextrose agar without cycloheximide
  • Thioglycolate broth
  • Chocolate agar
  • Löwenstein-Jensen medium
  • Nonnutrient agar with E coli overlay
  • Slides - Gram stain, Giemsa stain
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Imaging Studies

CT scanning of the orbit and head may be helpful in case of trauma to look for a foreign body.

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Procedures

With a corneal ulcer, anesthetize the cornea with topical drops, and, at the slit lamp, scrape the base and the leading edge of the infiltrate with the Kimura spatula, and place on the culture medium or slide.

With endophthalmitis, diagnostic and therapeutic vitrectomy is used to confirm the diagnosis and to evaluate the organisms' sensitivity to antibacterial agents.

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Histologic Findings

E coli is a gram-negative rod. E coli has a fermentative and respiratory type of metabolism.

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Contributor Information and Disclosures
Author

Donny W Suh, MD, FAAP Chief of Pediatric Ophthalmology and Strabismus, Children's Hospital and Medical Center; Associate Professor, Department of Ophthalmology and Visual Sciences, Truhlsen Eye Institute, University of Nebraska Medical Center

Donny W Suh, MD, FAAP is a member of the following medical societies: American Academy of Ophthalmology, American Academy of Pediatrics, American Association for Pediatric Ophthalmology and Strabismus, American Medical Association, Iowa Medical Society, National Eye Care Project

Disclosure: Nothing to disclose.

Specialty Editor Board

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Received salary from Medscape for employment. for: Medscape.

J James Rowsey, MD Former Director of Corneal Services, St Luke's Cataract and Laser Institute

J James Rowsey, MD is a member of the following medical societies: American Academy of Ophthalmology, American Association for the Advancement of Science, American Medical Association, Association for Research in Vision and Ophthalmology, Florida Medical Association, Sigma Xi, Southern Medical Association, Pan-American Association of Ophthalmology

Disclosure: Nothing to disclose.

Chief Editor

Hampton Roy, Sr, MD Associate Clinical Professor, Department of Ophthalmology, University of Arkansas for Medical Sciences

Hampton Roy, Sr, MD is a member of the following medical societies: American Academy of Ophthalmology, American College of Surgeons, Pan-American Association of Ophthalmology

Disclosure: Nothing to disclose.

Additional Contributors

Kilbourn Gordon, III, MD, FACEP Urgent Care Physician

Kilbourn Gordon, III, MD, FACEP is a member of the following medical societies: American Academy of Ophthalmology, Wilderness Medical Society

Disclosure: Nothing to disclose.

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Bacterial corneal ulcer with hypopyon.
 
 
 
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