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Published on: December 18, 2012
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.
Purpose:
To elucidate a distinctive clinical feature in cases of microsporidial stromal keratitis (MSK).
Method:
A retrospective observational study of cases with a histopathological and/or microbiological diagnosis of MSK on corneal biopsy or host corneal button between 2016 and 2022 was conducted.
Results:
Eighteen cases with a confirmed histopathological and/or microbiological diagnosis of MSK were detected. Careful review of slit-lamp photographs revealed the presence of pigmented keratic precipitates (KPs) beyond the area of stromal keratitis in five out of eighteen cases (27.7%).
Conclusion:
The presence of pigmented KPs beyond the area of lesion can alert the clinician to keep microsporidia as a differential cause for stromal keratitis. Management can be tailored accordingly for a better outcome.
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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