“…Among healthcare and social assistance workers in the United States, MSDs accounted for 42% of non-fatal injuries and illnesses requiring days away from work with an incidence rate (55 cases per 10,000 full-time workers) higher than the rate for all private industries and second only to the transportation and warehousing industry (Bureau of Labor Statistics, 2013). Ophthalmologists and other eyecare physicians, in particular, report a high prevalence of musculoskeletal pain and other symptoms consistent with MSDs of the neck, shoulders, low back, and upper extremities (Chatterjee et al, 1994;Chams et al, 2004;Dhimitri et al, 2005;Marx et al, 2005;Long et al, 2011). Existing studies have reported prevalence estimates of neck symptoms ranging from 33% to 69% and upper extremity/shoulder symptoms ranging from 11% to 33% (Chatterjee et al, 1994;Chams et al, 2004;Dhimitri et al, 2005;Sivak-Callcott et al, 2010;Kitzmann et al, 2012).…”