Move monitor so light enter from side angle, not back Do NOT tip monitor down Lower light levels Move light sources Too much contrast between Lower ambient light levels screen and surroundings or Turn off, reposition, or dim task lights document; worker feels relief Block offending light sources when bright areas are Change screen polarity to black on white shielded Very bright ambient lighting (above 500 lux or 50 fc) or Lower ambient light levels to 200-500 lux (20-50 fc) and shadowed areas caused by use task lights over-illumination Push monitor back (enlarge font size) Habit training for reclining Monitor closer than Computer glasses approximately 65 cm (25") Bring keyboard forward, possibly with a keyboard tray Different viewed objects Use document stand or otherwise equalize distances to (screen, documents) at within about 10 cm (4") if rapid viewing changes are different distances from the required eyes Screen or documents not oriented perpendicular to the Change monitor, document stand line of sight (tipped back angle slightly is even better) Move monitor back as far as possible Prolonged near focusing Habit training throughout the day with few Rearrange space to provide view far-focusing opportunities Introduce glazing Monitor image dim, fuzzy, Upgrade monitor Use software to enlarge image flickery, small, or otherwise
Move monitor so light enter from side angle, not back Do NOT tip monitor down Lower light levels Move light sources Too much contrast between screen and surroundings or document; worker feels relief when bright areas are shielded Lower ambient light levels Turn off, reposition, or dim task lights Block offending light sources Change screen polarity to black on white Very bright ambient lighting (above 500 lux or 50 fc) or shadowed areas caused by over-illumination Lower ambient light levels to 200-500 lux (20-50 fc) and use task lights Monitor closer than approximately 65 cm (25") Push monitor back (enlarge font size) Habit training for reclining Computer glasses Bring keyboard forward, possibly with a keyboard tray Different viewed objects (screen, documents) at different distances from the eyes Use document stand or otherwise equalize distances to within about 10 cm (4") if rapid viewing changes are required Screen or documents not oriented perpendicular to the line of sight (tipped back slightly is even better) Change monitor, document stand angle Prolonged near focusing throughout the day with few far-focusing opportunities Move monitor back as far as possible Habit training Rearrange space to provide view Introduce glazing Monitor image dim, fuzzy, flickery, small, or otherwise Upgrade monitor Use software to enlarge image
ERGO-Selfhelp-Checklist-from-ESAMS.docx