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Glaucoma Risk Factors Identified

by Sheela Philomena on January 2, 2012 at 2:21 PM
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 Glaucoma Risk Factors Identified

Gender, age and place of stay play role in glaucoma risk, shows study.

Exfoliation syndrome (ES) is an eye condition that is a leading cause of secondary open-angle glaucoma and increased risk of cataract as well as cataract surgery complications.

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"Although many studies from around the world have reported on the burden of the disease, some aspects of the basic descriptive epidemiologic features, which may help shed light on the cause, are inconsistent," said Louis Pasquale, M.D., study co-author and director of Massachusetts Eye and Ear's Glaucoma Center of Excellence.

"In this study we found that women are more vulnerable to this disease than men, that ES is not a disease of Norwegian descent, and that where you live does matter when it comes to developing the disease."
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Researchers from the Mass. Eye and Ear, Harvard Medical School, Boston, Mass., Department of Medicine, Channing Laboratory, Brigham and Women's Hospital, Boston, Mass., Department of Ophthalmology and Visual Sciences, and University of Michigan, Ann Arbor, Mich., set out to find out how demographic and geographic risk factors are associated with ES.

They used data from 78,955 women in the Nurses' Health Study (NHS) and 41,191 men in the Health Professionals Follow-up Study (HPFS) residing throughout the continental United States who were prospectively followed for 20 years or more and who provided lifetime residence information to examine the descriptive epidemiologic features of ES or exfoliation glaucoma suspect (EGS).

This study confirmed established associations with age and family history and exfoliation glaucoma or exfoliation glaucoma suspect (EG/EGS), as well as provided new data on associations with gender, eye colour and ancestry.

"Importantly, those with a lifetime residential history of living in the middle tier and south tier of the United States was associated with 47 percent and 75 percent reduced risks, respectively, compared with living in the northern tier, and across the life span, residence at age 15 was the most strongly associated with risk, followed by current residence," the authors wrote.

The study showed an increased risk in females, but it was unclear as if gender-specific differences in the eye, such as axial length differences or environmental factors related to lifestyle, account for why women are more at risk for this disease.

The study has been recently published in Ophthalmology.

Source: ANI
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