They can be easily identified by visually impaired people ; this ` tactile feature ' does not use standard braille but , instead , a system developed in consultation with blind and visually impaired Canadians after research indicated that not all potential users read braille .
It does not use standard Braille ; rather , the feature uses a system developed in consultation with blind and visually impaired Canadians after research indicated that not all potential users read Braille .