Keratic Precipitates: An Overlooked Sign of Microsporidial Stromal Keratitis?

Ipsita Muni1, Smruti Rekha Priyadarshini1, Srikant Kumar Sahu1

  • 1Cornea and Anterior Segment Service, L V Prasad Eye Institute, Bhubaneswar, India.

Abstract

Insights

A distinctive clinical sign, pigmented keratic precipitates (KPs) beyond the lesion area, was identified in microsporidial stromal keratitis (MSK). This finding aids in diagnosing MSK and tailoring patient management for improved outcomes.

Area of Science:

  • Ophthalmology
  • Infectious Diseases
  • Microbiology

Background:

  • Microsporidial stromal keratitis (MSK) is an opportunistic infection.
  • Accurate diagnosis is crucial for effective management.

Purpose of the Study:

  • To identify a unique clinical characteristic of microsporidial stromal keratitis (MSK).

Main Methods:

  • Retrospective observational study of 18 confirmed MSK cases (2016-2022).
  • Analysis of slit-lamp photographs for clinical features.

Main Results:

  • Pigmented keratic precipitates (KPs) extending beyond the primary stromal keratitis lesion were observed in 27.7% (5/18) of cases.
  • This finding represents a distinctive clinical feature of MSK.

Conclusions:

  • The presence of pigmented KPs outside the main lesion area can suggest microsporidia as a cause of stromal keratitis.
  • Early identification of this sign allows for prompt and appropriate treatment, improving patient prognosis.

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