Spectacles; spectacle lenses; corrective optical lenses; spectacle lens blanks; sunglasses; myopia eyeglasses; contact lenses; snow goggles; eyeglass frames; optical lenses; optical lens blanks; downloadable computer software and computer hardware for managing a patient's lens prescription, frame information and frame fit; smartglasses; virtual reality glasses

'blank':9,23 'comput':25,28 'contact':13 'correct':4 'download':24 'eyeglass':12,17 'fit':41 'frame':18,37,40 'glass':45 'goggl':16 'hardwar':29 'inform':38 'len':8,22,35 'lens':3,6,14,20 'manag':31 'myopia':11 'optic':5,19,21 'patient':33 'prescript':36 'realiti':44 'smartglass':42 'snow':15 'softwar':26 'spectacl':1,2,7 'sunglass':10 'virtual':43

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