Abstract:
PURPOSE:To assess the effect of cataract on the evaluation of macular pigment optical density (MPOD) in aged patients. METHODS:MPOD was prospectively measured using autofluorescence spectrometry before and after cataract surgery. The Lens Opacities Classification System III was used to grade the cataracts at baseline. RESULTS:Forty-five eyes of 41 subjects, who had no ocular disorders or fundus autofluorescence abnormalities except for age-related nuclear cataract, were included. Preoperative MPOD was 0.350 ± 0.117 density unit (DU). Regression analysis showed that a higher nuclear color score correlated with lower MPOD (t = -2.90, P = 0.0063). The preoperative MPOD prediction formula was MPOD = 0.545 - 0.069 × nuclear color score. A higher nuclear color score correlated significantly with failure to measure the MPOD (χ(2) = 5.08, P = 0.0242). The mean postoperative MPOD was 0.600 DU (95% confidence interval [CI], 0.562-0.637), which was significantly (P < 0.0001) higher than the preoperative level of 0.350 DU (95% CI, 0.313-0.388). Regression analysis showed that higher preoperative MPOD correlated with higher postoperative MPOD (t = 2.91, P = 0.0061). CONCLUSIONS:Cataract, especially its nuclear component, affects MPOD measured by autofluorescence spectrometry. Care should be taken when using this method in eyes with age-related macular maculopathy and age-related macular degeneration and in older patients who may develop these diseases.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Sasamoto Y,Gomi F,Sawa M,Sakaguchi H,Tsujikawa M,Nishida Kdoi
10.1167/iovs.10-5664subject
Has Abstractpub_date
2011-02-16 00:00:00pages
927-32issue
2eissn
0146-0404issn
1552-5783pii
iovs.10-5664journal_volume
52pub_type
杂志文章abstract:PURPOSE:To assess structural, functional, and visual behavioral relationships in mutant rhodopsin transgenic (Tg) rats and to determine whether early optokinetic tracking (OKT) visual experience, known to permanently elevate visual thresholds in normal rats, can enhance vision in rats with photoreceptor degeneration. ...
journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章,多中心研究
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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abstract:PURPOSE:Videokeratography is a powerful tool for the diagnosis of corneal shape abnormalities. However, interpretation of the topographic map is sometimes difficult, especially when pathologies with similar topographic patterns are suspected. The neural networks model, an artificial intelligence approach, was applied f...
journal_title:Investigative ophthalmology & visual science
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doi:
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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