Table 1.

Frequency distribution of the 13 symptoms in adults and children

Symptoms	Adults (%)	Children (%)
Tiredness	81.8	72.8
Eye strain/pain	70.7	56.8
Headache	68.7	59.2
Burning sensation	63.8	48
Loose concentration	60.9	42.4
Watering	57.7	44.8
Re-reading the same line or words	55.7	38.4
Blurred vision	50.2	36
Difficulty in focusing while shifting view	49.8	30.4
Pulling sensation	43.3	22.4
Nausea	32.3	21.6
Jumping or floating of words on the page	27.4	14.4
Double vision	25.1	16.8