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Common eye problems in American Indians/Alaskan Natives. Steven L. Mansberger, M.D., M.P.H. Devers Eye Institute Portland, Oregon. Disclosure. S anten: C Allergan: C, L National Eye Institute: S Centers for Disease Control and Prevention: S. Topics. Studies in AI/AN

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common eye problems in american indians alaskan natives

Common eye problems in American Indians/Alaskan Natives

Steven L. Mansberger, M.D., M.P.H.

Devers Eye Institute

Portland, Oregon

disclosure
Disclosure

Santen: C

Allergan: C, L

National Eye Institute: S

Centers for Disease Control and Prevention: S

topics
Topics
  • Studies in AI/AN
  • Northwest Tribal Vision Project
  • Results
  • Future Directions
most common causes of visual impairment
Most common causes of visual Impairment
  • Blacks/Whites: Macular Degeneration, glaucoma, uncorrected refractive error (Baltimore Eye Survey)
  • Hispanics: glaucoma, cataract, macular degeneration, diabetic retinopathy (LALES, Proyecto VER)
  • Whites: Macular degeneration (Beaver Dam Study)
  • Japan, Korea, India, Africa, Caribbean
northwest tribal vision project
Northwest Tribal Vision Project
  • Purpose:
    • Pilot study: To determine the prevalence of eye diseases in NW Native Americans
    • To determine if a screening protocol is as accurate as a full eye exam in an ophthalmologist’s office
  • Funding: American Glaucoma Society, National Eye Institute, and Centers for Disease Control and Prevention (CDC)
what is the prevalence of eye disease in native americans
What is the Prevalence of Eye disease in Native Americans?
  • Vision is the second leading cause of impairment
  • Studies in Native Americans have been chart reviews or convenience Samples
    • Navajo/Pima: diabetic retinopathy, cataracts, and trauma
    • Alaskan Eskimos: angle closure glaucoma
glaucoma in ai an
Glaucoma in AI/AN
  • Alaskan Eskimos: 0.6% (Arkell, 1987)
  • Northwest AI/AN: 6.2% (Mansberger, 2005)
  • Oklahoma AI/AN: 5.6% (Lee, 2005)
retinal diseases in ai an
Retinal Diseases in AI/AN
  • Diabetic Retinopathy
    • 6.0% (Mansberger, 2005)
    • 20.1% (Oklahoma, Lee, 2005)
  • ARMD
    • 16.9% (NW AI/AN, Mansberger, 2005)
    • 33.6% (Oklahoma, Lee, 2005)
proportion with visual impairment blindness
Proportion with Visual Impairment/Blindness
  • 6.9% (20/288) with visual Impairment of the better eye with correction (20/40 vision or worse)
  • 21% (61/288) visual impairment without correction
  • 0.9% (3/288) Blind in the better seeing eye (20/200 or worse)
  • Greater than U.S. population (Haymes, et al Ophthalmic Epi 2009)
differences exist in ai an anatomy and eye disease
Differences Exist in AI/AN anatomy and Eye Disease
  • OD Vertical C/D = 0.48 +/- .18 (range 0.0-0.9)
  • One person (0.3%) had IOP > 21 mm Hg (95%CI=0-1.0%)
  • 15 (6.2%) participants had glaucomatous optic discs and visual fields (95%CI=2.1-7.8%).
    • None with an IOP greater than 20 mm Hg.
differences also exist within ai an
Differences also exist within AI/AN

?

Source: Genetree.com http://www.genetree.com/product/native-american-test.asp

summary
Summary
  • Vision problems are the second leading cause of impairment in AI/AN
  • Uncorrected refractive error, cataract, and retinal diseases were the most common causes of visual impairment
  • A rare form of glaucoma was more common in AI/AN
  • Differences in eye problems occur even between AI/AN in different regions
  • Research to determine the factors related to disparities in eye problems in AI/AN are needed