Symposium Article
Ocular Disease, Knowledge and Technology Applications in Patients With Diabetes

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Abstract

An estimated 25.8 million children and adults in the United States, approximately 8.3% of the population, have diabetes. Diabetes prevalence varies by race and ethnicity. African Americans have the highest prevalence (12.6%), followed closely by Hispanics (11.8%), Asian Americans (8.4%) and whites (7.1%). The purpose of this article was to discuss the ocular complications of diabetes, the cultural and racial differences in diabetes knowledge and the role of telemedicine as a means to reach the undeserved who are at risk of complications. Information on the pathophysiology of ocular disease in patients with diabetes and the role of telemedicine in diabetes care was derived from a literature review. National Institutes of Health online resources were queried to present data on the racial and cultural understandings of diabetes and diabetes-related complications. The microvascular ocular complications of diabetes are discussed for retinopathy, cataracts, glaucoma and ocular surface disease. Racial and cultural differences in knowledge of recommended self-care practices are presented. These differences, in part, may explain health disparities and the increased risk of diabetes and its complications in rural minority communities. Finally, advances in telemedicine technology are discussed that show improvements in metabolic control and cardiovascular risk in adults with type 2 diabetes. Improving provider and patient understanding of diabetes complications may improve management and self-care practices that are important for diabetes control. Telemedicine may improve access to diabetes specialists and may improve self-management education and diabetes control particularly in rural and underserved communities.

Section snippets

THE DIABETES EPIDEMIC

An estimated 25.8 million children and adults in the United States, approximately 8.3% of the population, have diabetes. Of the 25.8 million, 7 million people are suspected to be undiagnosed with an additional 79 million people living with prediabetes.1 Diabetes prevalence varies across ethnicities and communities. African Americans have the highest prevalence (12.6%), followed closely by Hispanics (11.8%), Asian Americans (8.4%), and whites (7.1%).1 This article discusses 3 related areas of

Retinopathy

Diabetic retinopathy is the leading cause of blindness among adults aged 20 to 74 in the United States. The prevalence of diabetic retinopathy is especially high, with more than 90% of patients with type 1 diabetes and at least 60% of patients with type 2 diabetes having some degree of retinopathy 20 years after diagnosis.6 Both type 1 and type 2 diabetes are associated with retinal microvascular changes. Long-standing hyperglycemia contributes to vascular endothelial dysfunction, resulting in

LIMITING FACTORS IN PATIENTS UNDERSTANDING OF DIABETES AND OCULAR HEALTH

While medical personnel may understand the ocular complications of diabetes, knowledge of diabetes and related complications among people with diabetes is less clear. Furthermore, lack of knowledge by patients with diabetes may represent a barrier to appropriate and important preventive examinations. To better understand the knowledge, attitudes and perceptions of patients with diabetes, the National Eye Health Education Program and the National Eye Institute collaborated to assess individuals

CURRENT ROLE OF TELEMEDICINE

Telemedicine (telecommunication for diagnostic and therapeutic intervention) is proving itself as a useful tool in the future of medicine, particularly in rural communities with limited access to specialists. For example, one study using teleophthalmology to detect diabetic retinopathy in Canada showed that telemedicine benefits rural communities by decreasing time to treatment, allowing patients to be followed remotely, and prevented unnecessary referrals.20 Other studies evaluating the

THE FUTURE OF TELEMEDICINE

A study conducted in rural South Carolina was the first of its kind to conduct a clinical trial to evaluate a remote comprehensive DSME intervention that included a remote retinal assessment. The study was set in an underserved and rural community, which was primarily African American. To improve adherence to American Diabetes Association guidelines, a registered dietitian and a nurse certified diabetes educator conducted the DSME intervention. The remote DSME intervention was implemented as a

CONCLUDING REMARKS

The microvascular complications of diabetes may affect several ocular structures including the cornea, lens and retina as well as ocular function such as vision and intraocular pressure. The role of telemedicine to facilitate, prevent and treat diabetes and ocular diseases is evolving. Telemedicine may efficiently and effectively improve diabetes knowledge and provide remote health services that promote early recognition of retinopathy, as well as the adoption of self-care practices such as

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    Presented in part at the Diabetes Initiative of South Carolina Symposium, September 20–21, 2012, Charleston, SC.

    The authors have no financial or other conflicts of interest to disclose.

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