Table 2

Laboratory data of early and late cases of Acanthamoeba keratitis

Tests		Category		Total (39)
Tests		Early cases (n=24)	Late cases (n=15)	Total (39)
Acanthamoeba
Cysts in smears
Gram	15 (62.5%)	11 (73.3%)	26 (66.6%)
Giemsa	14 (58.3%)	9 (60.0%)	23 (58.9%)
KOH+CFW	21 (87.5%)	13 (86.6%)	34 (87.1%)
Culture
Acanthamoeba	21 (87.5%)	13 (86.6%)	34 (87.1%)
Gram +ve bacteria	5 (20.8%)	4 (26.6%)	9 (23.0%)

↵Smear −ve culture +ve - (5).
↵Smear +ve culture −ve - (5).
Early = cases diagnosed within 30 days of start of symptoms.
Late = cases diagnosed 30 days after start of symptoms.