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RISS 인기검색어
- 검색키워드
- 저자 : Tomonori Tashiro (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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Age and Wavelength Dependence of Intraocular Straylight
Nao Tsuchiya,Tomonori Tashiro,Tomoharu Ishikawa,Kazuhiko Ohnuma,Miyoshi Ayama 한국색채학회 2017 AIC 2017 Jeju Vol.2017 No.10
Intraocular straylight is the light scattered in the eye. There are some causes to produce it. Main cause of it is forward scattering by the ocular media. It leads to decline the QOL, thus the QOV as well. So it is important to develop the quantitative measurement method and simplified measurement device. In this study, we estimated the amount of intraocular straylight using a veiling method with an edgeless test stimulus and examined the age and wavelength dependence. Results indicate that intraocular straylight increases with age as expected. About the wavelength dependence, relative decrease from short to middle wavelength range seems to follow Rayleigh scattering, while it stays in about the same level from middle to long wavelength region.
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What Factors Mediate Individual Differences in Color Matching?
Atsushi Konno,Kunihiro Hatakeyama,Yuki Kawashima,Tomonori Tashiro,Takehiro Nagai,Yasuki Yamauchi 한국색채학회 2017 AIC 2017 Jeju Vol.2017 No.10
We aimed to specify physiological factors which mediate individual differences in color matching. In previous studies, we found that the deviations of the color matching for the red-green direction is correlated with the macular pigment density. However, the factors causing blue-yellow deviation were not clarified. In this study, we performed a color matching experiment using metamers with the identical tristimulus values and an identical amount of the macular pigment absorption to examine the deviations of the color matching in the blue-yellow direction. As a result, there was a correlation between color matching deviations and the amounts of light absorbed by lens for each metamer, suggesting that the deviations of color matching in blue-yellow direction may be due to the amount absorbed of lens. These results suggest that individual difference in color matching in short wavelength light is strongly mediated by these two physiological properties of the eye.
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