Playing cards have been adapted for use by the visually impaired by the inclusion of large-print and/or braille characters as part of the card. Both standard card decks and decks for specific games such as UNO are commonly adapted. Large-print cards are also commonly used by the elderly. In addition to increasing the size of the suit symbol and the denomination text, large-print cards commonly reduce the visual complexity of the images for simpler identification. They may also omit the patterns of pips in favor of one large pip to identify suit. Oversize cards are sometimes used but are uncommon. These can assist with ease of handling and to allow for larger text.
No universal standards for braille playing cards exist. There are many national and producer variations. In most cases each card is marked with two braille characters in the same location as the normal corner markings. The two characters can appear in either vertical (one character below another) or horizontal (two characters side by side). In either case one character identifies the card suit and the other the card denomination. 1 for ace, 2 through 9 for the numbered cards, X or the letter O for ten, J for jack, Q for queen, K for king. The suits are variously marked using D for diamond, S for spade, C or X for club and H or K for heart.
No universal standards for braille playing cards exist. There are many national and producer variations. In most cases each card is marked with two braille characters in the same location as the normal corner markings. The two characters can appear in either vertical (one character below another) or horizontal (two characters side by side). In either case one character identifies the card suit and the other the card denomination. 1 for ace, 2 through 9 for the numbered cards, X or the letter O for ten, J for jack, Q for queen, K for king. The suits are variously marked using D for diamond, S for spade, C or X for club and H or K for heart.
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