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KMID : 0360220120530030452
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Journal of the Korean Ophthalmological Society
2012 Volume.53 No. 3 p.452 ~ p.459
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The Effect of Colored Filters in Patients with Meares-Irlen Syndrome
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Park Shin-Hae
Kim Seung-Hyun
Cho Yoon-A
Joo Choun-Ki
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Abstract
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Purpose: To evaluate the benefit of colored filters in Meares-Irlen Syndrome patients with reading difficulties.
Methods: Twenty-five patients were selected through a brief questionnaire aimed to determine symptoms of eyestrain or visual distortion after thorough eye examinations. The cutoff value of the questionnaire was 2.13. The rates of Korean reading and writing were measured using the RWSM (Reading Writing Speed Meter) test with and without the use of colored filters. Two months after wearing the individually prescribed colored filters, a questionnaire on the patient’s subjective satisfaction with the colored filters were completed and evaluated.
Results: The blue (n = 8, 32%) and gray (n = 4, 16%) colors were the most frequently selected filters. The mean score of the questionnaire on reading difficulties was 2.72. The mean reading rate improved from 82.72 wpm (words per minute) to 101.84 wpm with the colored filters, a statistically significant change (p = 0.019). The mean writing rate did not improve. The overall satisfaction score with the colored lenses was 3.6, with the highest score given to ease of reading (4.08) and the lowest to writing (2.92).
Conclusions: In cases of reading difficulty, colored filters were effective for alleviating visual symptoms and improving reading speed. It is important to achieve an adequate understanding of the specific symptoms of Meares-Irlen Syndrome and to perform a thorough eye examination to differentiate this from other ocular disorders.
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KEYWORD
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Colored filters, Dyslexia, Meares-Irlen syndrome, Reading difficulties, Reading speed
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