Visual testing articles, namely, eye charts, eye cards, eye visual contrast charts, symbol books, namely books with pictures therein bearing visually observable items, 3-dimensional symbols, visual testing devices, namely, cone adaptation, test items featuring colored 3-dimensional chips, fixation sticks and paddler, orientation mailboxes featuring 3-dimensions with a slot for insertion of a letter, campimeter featuring 3-dimensional articles for testing peripheral vision

'3':24,37,47,59 'adapt':32 'articl':3,61 'bear':20 'book':14,16 'campimet':57 'card':8 'chart':6,12 'chip':39 'color':36 'cone':31 'contrast':11 'devic':29 'dimens':48 'dimension':25,38,60 'eye':5,7,9 'featur':35,46,58 'fixat':40 'insert':53 'item':23,34 'letter':56 'mailbox':45 'name':4,15,30 'observ':22 'orient':44 'paddler':43 'peripher':64 'pictur':18 'slot':51 'stick':41 'symbol':13,26 'test':2,28,33,63 'therein':19 'vision':65 'visual':1,10,21,27

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