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KMID : 1159320200220020173
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Korean Journal of Vision Science
2020 Volume.22 No. 2 p.173 ~ p.180
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Analysis on Physical Deformation and Subjective Discomfort of Spectacle Lens
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Her Woong-Youl
Leem Hyun-Sung
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Abstract
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Purpose : The purpose of this study was to find out the effects of distortion, curve change, and dizziness by classifying variables according to the spectacle frame and lenses for those who feel uncomfortable when wearing new glasses without change in other variables of the spectacle frame and lens power.
Methods : For 206 eyes of 103 people(55 men and 48 women) who have no changes in lens power and the variables of the glasses and no ophthalmic diseases and other diseases, the spectacle frame (material, shape, processing method) and spectacle lens(refractive index, design method, coating type) were analyzed the variables and the effect of those variables on the degree of distortion, curve change, and dizziness of the lens was measured.
Results : In the classification by lens, it was shown that there was a difference in the degree of distortion, curve change, and dizziness in the refractive index and coating method. It was also shown that there is a difference in distortion degree, curve change, and dizziness in material, shape, and processing method in classification according to the frame. As a result of the correlation analysis of the degree of distortion, curve change, and dizziness, the correlation analysis shown that the more severe the distortion of the glasses, the greater the curve change. It was confirmed that the degree of dizziness increased as the curve change of the glasses increased.
Conclusion : As a result of this study, differences in distortion degree, curve change, and dizziness appeared according to the frames and lenses used. Therefore, it is necessary to select the frame and the lens and process accordingly.
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KEYWORD
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Deformation lens curvature, Dizziness, Lens distortion, Processing method
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