Glare from monitors measured with subjective scales and eye movements

Participants were confronted with four types of reflections on a computer s creen, and the visual effects they experienced were recorded. The effects o f non-glare, specular, diffuse and combined specular/diffuse reflexes were measured through eye movements, category scales and magnitude estimation. T wo presentations, a picture and a text page were shown to the eight partici pants. The reflexes had no easily detectable effect on the eye movement var iables, but had a significant effect on all the category scales. The specul ar reflex condition was always judged as the most disturbing. One eye movem ent variable, average velocity, had a significantly higher velocity for the picture. The eye movement variables and the category scales formed differe nt factors in a factor analysis. irritation appeared to be an important det erming variable for the other scales. (C) 1999 Elsevier Science B.V. All ri ghts reserved.