Fig. 2
From: Diagnosis and treatment of microsporidial keratoconjunctivitis: literature review and case series
Microsporidial spores staining dark violet against a pale-green background in a conjunctival swab specimen from case 3. Microsporidial spores (large arrow) are seen as well-defined oval reddish bodies with a dark staining of the narrow end of the spore (black) or a waistband (white) closer to the tip of narrow end. Also seen are the unstained blue spores (small arrow) which possibly are immature or degenerating spores (1% acid-fast stain, ×1,000)