Table 1 Incidence of ALI‐induced bullous keratopathy (ALI‐BK) as a primary indication for penetrating keratoplasty (PKP) in 3 centres from 2001 to 2004.

Institution	2001		2002		2003		2004
	Total PKPs	No. of ALI‐BK cases (%)	Total PKPs	No. of ALI‐BK cases (%)	Total PKPs	No. of ALI‐BK cases (%)	Total PKPs	No. of ALI‐BK cases (%)
KPUM, Japan	48	9 (18.8)	45	10 (22.2)	54	10 (18.5)	48	10 (20.8)
SNEC, Singapore	121	1 (0.8)	145	1 (0.7)	123	6 (4.9)	172	2 (1.2)
NQMC, UK	75	0 (0)	52	0 (0)	52	0 (0)	66	0 (0)