Table 3. Median pre-operative, post-operative, and change in VA categorised by study year.

Year	Number of patients (%)	Median Pre-op VA, LogMAR	Median post operative VA, LogMAR	Change in VA median, LogMAR	Patients with ΔVA >0.3, n (%)
2001	18 (7.6)	0.60 (0.47–0.77)	0.39 (0.18–0.57)	0.15 (0.00–0.39)	5 (27.8)
2002	24 (10.1)	0.69 (0.48–0.78)	0.48 (0.27–0.78)	0.12 (0.03–0.30)	4 (16.7)
2003	10 (4.2)	0.54 (0.47–0.77)	0.69 (0.51–0.77)	-0.06 (-0.21–0.14)	1 (10.0)
2004	21 (8.9)	0.77 (0.47–1.00)	0.47 (0.18–0.78)	0.18 (0.00–0.42)	7 (33.3)
2005	25 (10.5)	0.47 (0.47–0.77)	0.47 (0.18–0.60)	0.30 (0.00–0.40)	10 (40.0)
2006	18 (7.6)	0.60 (0.47–0.77)	0.18 (0.18–0.53)	0.18 (0.12–0.48)	8 (44.4)
2007	24 (10.1)	0.47 (0.30–0.60)	0.18 (0.16–0.33)	0.18 (0.11–0.41)	9 (37.5)
2008	27 (11.4)	0.47 (0.47–0.77)	0.30 (0.18–0.48)	0.30 (0.00–0.36)	9 (33.3)
2009	29 (12.2)	0.60 (0.30–0.60)	0.18 (0.18–0.48)	0.12 (0.00–0.42)	10 (34.5)
2010	27 (11.4)	0.47 (0.40–0.60)	0.30 (0.18–0.39)	0.30 (0.12–0.45)	11 (40.7)
2011	14 (5.9)	0.60 (0.47–1.00)	0.24 (0.18–0.53)	0.41 (0.19–0.65)	8 (57.1)

Abbreviation: VA, visual acuity.