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. 2012 Aug;26(8):1052-7.
doi: 10.1038/eye.2012.86. Epub 2012 May 25.

Macular pigment optical density in wet age-related macular degeneration among Indians

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Macular pigment optical density in wet age-related macular degeneration among Indians

R Raman et al. Eye (Lond). 2012 Aug.

Abstract

Purpose: To estimate the value of macular pigment optical density (MPOD) in adult south Indian population with wet age-related macular degeneration (AMD).

Methods: A total of 33 patients with wet AMD and 29 age-matched controls >50 years of age underwent MPOD measurement with the macular densitometer. The patients were also tested for their dietary intake of carotenoids, smoking history, and lifetime UV exposure.

Results: The mean MPOD values in the Indian population with wet AMD was 0.23 (95% CI: 0.18-0.29) vs control was 0.43 (95% CI: 0.37-0.49), P<0.0001, at 0.5° eccentricity. Ex-smokers had a lower MPOD than non-smokers (0.16 (0.09-0.23) vs 0.28 (0.22-0.34), P=0.026) and the lowest level of carotenoids intake had 48% lower MPOD than the highest level (0.14 (0.08-0.21) vs 0.33 (0.24-0.43), P=0.012). There was no significant age-related decline or gender variation in MPOD.

Conclusion: This study establishes the MPOD in adult Indian population with wet AMD, with a lack of macular pigment in association with wet AMD.

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Figures

Figure 1
Figure 1
MPOD among subjects with and without AMD. AMD: Age-related macular degeneration, MPOD: Macular pigment optical density.
Figure 2
Figure 2
Relationship between MPOD and pack years of smoking. MPOD: Macular pigment optical density.
Figure 3
Figure 3
Relationship between MPOD and dietary carotenoids. MPOD: Macular pigment optical density.
Figure 4
Figure 4
Bland–Altman plot for MPOD showing difference between measurements by two observers versus the average MPOD of the two observers.

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