Looking up occasionally Children and adults need to look up and away from near tasks to distant objects regularly.
Sit straight Have chest up, shoulders back so both eyes are at the eye task and at an equal distance from what is being seen.
Sit upright while reading or watching television in bed. Avoid lying on backside or stomach.
Viewing distance Reading, writing or close up work is best done at an eye to activity distance equal to the length between middle knuckle and elbow. This is usually 36 - 41 cm for adults and for a child it is 28 - 32cm.