For optimal ergonomic positioning, where should computer screens be placed?

For optimal ergonomic positioning, computer screens should be positioned perpendicular to glare sources. This positioning helps to minimize reflections from light sources, which can cause eye strain and discomfort when viewing the screen. By placing the screen in a way that avoids direct glare, users can maintain better visual clarity and comfort, reducing the likelihood of fatigue during prolonged computer use.

While placing the screen at eye level is also important for overall comfort and posture, it does not specifically address glare, which can be a significant factor in the ergonomics of computer use. Ensuring that screens are not facing bright lighting sources is crucial, but the most effective way to prevent glare is to position the screen perpendicularly to those sources. Additionally, positioning the screen at an angle away from the user can actually lead to more strain, rather than less, as it may require awkward neck positioning and could increase glare exposure.