From:  Digital eye strain and associated factors among final-year undergraduate students in public universities in southern Ethiopia

 The DESQ items used to assess DES and their responses (n = 403).

DESQ items (n = 403)Yes (%)No (%)
In the past 12 months:
Did you have dry eyes (frequently feeling dryness in the eye)?91 (22.6)312 (77.4)
Did you have eyestrain (frequently feeling pain or strain in the eyes)?101 (25.1)302 (74.9)
Did you have irritation or burning in your eyes?119 (29.5)284 (70.5)
Did you have red eyes (without apparent reason)?74 (18.4)329 (81.6)
Did you have photophobia (sensitivity to bright light)?136 (33.7)267 (66.3)
Did you have a halo (notice a ring of light surrounding objects)?70 (17.4)333 (82.6)
Did you have blurred vision?44 (10.9)359 (89.1)
Did you feel a foreign body in the eye without an apparent reason?36 (8.9)367 (91.1)
Did you have a prickling sensation in the eye?73 (18.1)330 (81.9)
Did you have watery eyes (tears) without an apparent reason?89 (22.1)314 (77.9)
Did you have diplopia (seeing double)?22 (5.5)381 (94.5)
Did you have a headache (not related to injury or migraine)?105 (26.1)298 (73.9)
Did you have shoulder and/or neck pain (without apparent reasons)?94 (23.3)309 (76.7)

* Percentages are rounded to 1 decimal place. DES: digital eye strain; DESQ: Digital Eye Strain questionnaire.