Fig. 2From: Knowledge about age-related eye diseases in the general population in GermanyBiplot from multiple correspondence analysis based on correspondence analysis of the Burt matrix of correct ( +) and incorrect (-) responses to 16 items assessing knowledge about common eye diseases in Germany. Items on cataract (C), glaucoma (G), age-related macular degeneration (A) and diabetic eye disease (D) follow the descriptions from Table 2Back to article page