Focal Points 2018 Module: Parasitic Keratitis

CME Credit
  • Up to 2.0 credits of General CME
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Focal Points 2018 Module: Parasitic Keratitis

Focal Points 2018 Module: Parasitic Keratitis

Several parasites can produce ocular infections, including keratitis. Although rare, parasitic keratitis infections can be severe. These infections often pose diagnostic challenges because symptoms can masquerade as other infections and clinicians frequently omit parasites from their differential diagnosis, delaying much-needed treatment.

With the establishment of treatment protocols and the use of confocal microscopy, there has been significant improvements in the ability to diagnose and manage parasitic keratitis.

This Focal Points module describes the epidemiology, differential diagnosis and treatment of parasitic keratitis.

Complete this module to: 

  • List the parasites that cause keratitis.
  • Summarize key features of the outbreaks of Acanthamoeba keratitis.
  • Describe clinical situations in which infection with Acanthamoeba and microsporidia is suspected. 
  • Logically suggest and interpret diagnostic clinical and laboratory tests for Acanthamoeba and microsporidia.
  • Describe the value of in vivo confocal microscopy in the diagnosis of Acanthamoeba keratitis. 
  • Summarize surgical and other treatments of various parasitic keratitis, including the role and limitations of deep anterior lamellar keratoplasty (DALK).

Authors: Prashant Garg, MBBS, MS; Aravind Roy, MBBS, MS; Savitri Sharma, MD
Consultants: Elmer Y. Tu, MD; Sonal Y. Tuli, MD

Focal Points issues are practical, hands-on discussions of the clinical issues you face daily. Each issue delivers high-quality, trusted ophthalmic information written and reviewed by leading experts.

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CME Information
The American Academy of Ophthalmology is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

The American Academy of Ophthalmology designates this enduring material for a maximum of 2 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

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