Question pretext
    
                                    Seeing (even with glasses)?
This question seeks to establish the origin of the disability reported in question 54
            
            
 
    Literal question
    
                                    What is the origin of your/......... disability?
            
            
 
    Categories
    
            
            
                
                    | Value | Category | 
                                    
                    
                        | 1 | From birth | 
                                    
                    
                        | 2 | Illness | 
                                    
                    
                        | 3 | Accident | 
                                    
                    
                        | 4 | Other | 
                                    
                    
                        | 5 | Don't know | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
     
 
    Interviewer instructions
    
                                    Responses should be written in the box provided. When the response is 4 other is given, the origin of the disability should be written on the line provided.