Irlen syndrome is one of visual perception disorders with symptoms including distortion of characters, light sensitivity and headaches. These symptoms can be improved by colored lenses and colored films.
In this study, we purposed to elucidate the visual characteristics of Irlen syndrome and the effects of age on visual function. Sixty-six persons with Irlen syndrome (Age range: 7–58 years old, 25 males, 41 females) were evaluated for three visual functions: color vision, near vision, and stereopsis. As a result, 47.0% of those with Irlen syndrome had problems with any of the visual functions, 40.0% of the subjects had stereopsis, 27.1% had near vision, and 7.6% had problems with color vision. This suggests that it is difficult for most of the clients with Irlen syndrome to focus and adjust their perspective. In addition, as a result of comparing school age and adult, there was a significant difference in color vision. It was suggested that the evaluation of visual function was useful for clients with Irlen syndrome. Therefore, it is necessary to examine how the visual function is affected with and without the colored lens.
View full abstract