Research Article
Empirical Evaluation of Visual Fatigue from Display Alignment Errors Using Cerebral Hemodynamic Responses
Table 1
Ophthalmological classification of visual fatigue (asthenopia) with their respective symptoms.
| Ophthalmological medical code | Ophthalmological symptoms |
| ICD-9, 368.1 | Subjective visual disturbances | ICD-9, 368.10 | Subjective visual disturbance | ICD-9, 368.13 | Asthenopia, eye strain, photophobia |
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