Table 4.

NEI VFQ-25 visual functioning scale scores by categories of vision impairment considering both the better-seeing eye and worse-seeing eye of the German population-based Gutenberg Health Study (GHS), 2007–2012

		Worse-seeing eye
		No VI (n = 11,021)	Mild VI (n = 465)	Moderate/severe VI (n = 455)
Better-seeing eye	No VI	89.6 (81.4/95.1), n = 11,021	84.0 (74.9/89.6), n = 430	80.5 (68.0/89.5), n = 395
	Mild VI	/	70.2 (62.5/80.2), n = 35	66.8 (45.7/76.0), n = 34
	Moderate/severe VI	/	/	63.2 (46.6/78.7), n = 26

Scores displayed as medians (interquartile range), VI Vision impairment; no VI: < 0.32 logMAR, mild VI: 0.32–0.5 logMAR; moderate/severe VI: > 0.5 logMAR