Keratic Precipitates: An Overlooked Sign of Microsporidial Stromal Keratitis?

ABSTRACT

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.

KEYWORDS:

• Keratic precipitate
• keratitis
• microsporidia
• stromal keratitis

Disclosure statement

No potential conflict of interest was reported by the author(s).

Authorship statement

All the authors included in this article fulfil the criteria of authorship.

Additional information

Funding

This research was supported by Hyderabad Eye Research Foundation, Hyderabad, India.