Of these 49.5% were registered as sight impaired and 50.5% were registered as severely sight impaired.
Roedd 11,195 (r) o bobl wedi’u cofrestru â nam ar eu golwg; o’r rhain, roedd tua hanner wedi’u cofrestru â nam ar eu golwg a tua hanner â nam difrifol ar eu golwg.