Lens Opacities Classification System III-Based Computational Model of Nuclear Cataracts

被引:0
作者
Lee, Chi-Hung [1 ]
Woo, George C. [2 ]
机构
[1] Feng Chia Univ, Dept Elect Engn, Taichung 40724, Taiwan
[2] Hong Kong Polytech Univ, Ctr Eye & Vis Res, Sch Optometry, Hong Kong, Peoples R China
来源
IEEE PHOTONICS JOURNAL | 2023年 / 15卷 / 06期
关键词
Model; cataract; slit-lamp; opacity; color; LIGHT-SCATTERING; MULTILAMELLAR BODIES; MIE SCATTERING; ABSORPTION; PARTICLES; ACUITY;
D O I
10.1109/JPHOT.2023.3319393
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This study developed a computational model to assess the optical properties of nuclear cataracts, using slit-lamp lens images for clinical evaluation based on color and opacity. Cataracts were represented as spherical particles distinct from the surrounding lens medium, with diameters ranging from tens to hundreds of nanometers. This study examined the effects of particle diameter, concentration, and colorimetric properties on the opacity of cataracts and their relationship with images on the retina. The findings indicate that particle size and concentration influence opacity. To ensure alignment with the Lens Opacities Classification System III, colors were defined based on a color absorption coefficient limited within a predetermined range. The developed model was used to simulate the yellow-tinted vision experienced by patients with nuclear cataracts.
引用
收藏
页数:7
相关论文
共 20 条
[1]  
Asbell PA, 2005, LANCET, V365, P599
[2]   THE LENS OPACITIES CLASSIFICATION SYSTEM-III [J].
CHYLACK, LT ;
WOLFE, JK ;
SINGER, DM ;
LESKE, MC ;
BULLIMORE, MA ;
BAILEY, IL ;
FRIEND, J ;
MCCARTHY, D ;
WU, SY .
ARCHIVES OF OPHTHALMOLOGY, 1993, 111 (06) :831-836
[3]   Predicted light scattering from particles observed in human age-related nuclear cataracts using Mie scattering theory [J].
Costello, M. Joseph ;
Johnsen, Sonke ;
Gilliland, Kurt O. ;
Freel, Christopher D. ;
Fowler, W. Craig .
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 2007, 48 (01) :303-312
[4]   Multilamellar spherical particles as potential sources of excessive light scattering in human age-related nuclear cataracts [J].
Costello, M. Joseph ;
Johnsen, Soenke ;
Metlapally, Sangeetha ;
Gilliland, Kurt O. ;
Frame, Lesley ;
Balasubramanian, Dorairajan .
EXPERIMENTAL EYE RESEARCH, 2010, 91 (06) :881-889
[5]   STUDY OF NUCLEAR CATARACT PROGRESSION USING THE NATIONAL-EYE-INSTITUTE SCHEIMPFLUG SYSTEM [J].
DATILES, MB ;
MAGNO, BV ;
FREIDLIN, V .
BRITISH JOURNAL OF OPHTHALMOLOGY, 1995, 79 (06) :527-534
[6]  
Gaillard ER, 2000, INVEST OPHTH VIS SCI, V41, P1454
[7]   Distribution, spherical structure and predicted Mie scattering of multilamellar bodies in human age-related nuclear cataracts [J].
Gilliland, KO ;
Freel, CD ;
Johnsen, S ;
Fowler, WC ;
Costello, MJ .
EXPERIMENTAL EYE RESEARCH, 2004, 79 (04) :563-576
[8]  
Gilliland KO, 2001, MOL VIS, V7, P120
[9]   Correlation of Nuclear Cataract Lens Density Using Scheimpflug Images with Lens Opacities Classiffication System III and Visual Function [J].
Grewal, Dilraj S. ;
Brar, Gagandeep S. ;
Grewal, Satinder Pal Singh .
OPHTHALMOLOGY, 2009, 116 (08) :1436-1443
[10]   The relation between visual acuity and illumination. [J].
Hecht, S .
JOURNAL OF GENERAL PHYSIOLOGY, 1928, 11 (03) :255-281