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Visual symptoms and reading performance

J D Grisham¹, M M Sheppard, W U Tran

¹School of Optometry, University of California, Berkeley.

Optometry and Vision Science : Official Publication of the American Academy of Optometry

|May 1, 1993

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Visual asthenopic symptoms, or eye strain, negatively impact reading performance. This study found that increased eye strain correlated with lower reading speed, vocabulary, and comprehension in university students.

Area of Science:

Ophthalmology
Cognitive Psychology
Human Factors

Background:

Clinical observations suggest a link between prolonged reading and visual asthenopic symptoms.
University students often experience visual discomfort during extended reading tasks.

Purpose of the Study:

To investigate the relationship between visual symptoms and reading performance in university students.
To determine if visual asthenopia affects reading speed, vocabulary, and comprehension.

Main Methods:

78 university students participated in a reading experiment with distinct reading and relaxation phases.
Standardized reading performance tests (Nelson-Denny) and symptom questionnaires were administered.
Binocular vision function was assessed in a subset of participants.

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Main Results:

Asthenopic complaints increased during reading and decreased during relaxation.
A significant negative correlation was observed between the number of visual symptoms and reading rate.
Students with higher symptom counts performed worse on vocabulary and comprehension tests.
While binocular dysfunction was minimal, affected individuals reported more visual symptoms.

Conclusions:

Visual asthenopic symptoms are associated with reduced reading performance.
Individuals experiencing significant visual discomfort may have impaired reading abilities, particularly in speed, vocabulary, and comprehension.
Further research into the impact of binocular vision on reading-related eye strain is warranted.