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. Author manuscript; available in PMC: 2014 Jan 6.
Published in final edited form as: Atten Percept Psychophys. 2010 Jul;72(5):10.3758/APP.72.5.1205. doi: 10.3758/APP.72.5.1205

Table 1.

Correlations Between Subjective Ratings of Visual Fatigue, Number of Cases Read, and Reading Time

Form of
Visual Fatigue		 Number of
Cases
 Reading Time
R P R P
Difficulty focusing .45 <.001 .39 <.005
Blurred vision .42 <.002 .34 <.020
Eyestrain .48 <.001 .43 <.002
Headache .43 <.002 .24 .090