“…CVS symptoms are grouped into four major groups, namely Astenopi (tense, tired and sore eyes), associated with the surface of eyeball (dry, watery eyes, irritation, problems with contact lens use), vision (blurred vision, slow in changing focus, double vision , presbyopia), extraocular (pain in the shoulders, arthritis, muscle injury, sloping neck, pinched nerves). According to Cole & Collins, the above symptoms are a combination of vision problems, poor working conditions, and wrong habits (Nopriadi et al, 2019).…”