Reliability and validity of abbreviated surveys derived from the National Eye Institute Visual Function Questionnaire: the study of osteoporotic fractures.
Kodjebacheva G, Coleman AL, Ensrud KE, Cauley JA, Yu F, Stone KL, Pedula KL, Hochberg MC, Mangione CM. Reliability and validity of abbreviated surveys derived from the National Eye Institute Visual Function Questionnaire: the study of osteoporotic fractures. Am J Ophthalmol. 2010 Feb; 149(2):330-40.