Grenadian Diabetics: Avoid Blindness

By:  Roslyn A. Douglas, MA - Founder, Central Health - Grenada


A diabetic having uncontrolled high blood glucose (sugar) over an extended period of time can develop a complication called Diabetic Retinopathy commonly called diabetic eye disease.  It is for this reason those with diabetes are strongly encouraged upon diagnosis to get an eye examination.

Source:  Vista Eye Care
(Top): Normal vision; (Bottom): Simulated vision in a patient
with advanced diabetic retinopathy

Ophthalmologist Dr. Elliot Mc Guire says that diabetic eye disease is one of the leading causes of blindness in Grenada, “Diabetic Eye Disease is one of the leading causes of blindness throughout the world and indeed in Grenada.”  Dr. Mc Guire went on to say that it is important upon diagnosis that a diabetic get screened, “Diabetic eye disease really does not affect you in the early phases.  You don’t feel pain – nothing, and so you feel everything is alright. But there may be changes that could be treated and help you stop the progression of the diabetic eye disease.  So it is important as soon as you are diagnosed as diabetic, you get your eyes checked.”

According to the Pan American Health Organization and World Health Organization Strategic Framework Vision 2020: The Right to Sight report for the Caribbean Region, diabetic eye disease is rampant, “More than 75% of patients who have had diabetes mellitus for more than 20 years will have some form of diabetic retinopathy. After 15 years of diabetes, approximately 2% of people become blind, and about 10% develop severe visual impairment.” Reasons for these high numbers range from inadequate medical management control to insufficient public awareness relating to the cause and prevention of blindness due to the disease. The Strategic Framework Vision report hopes that by the year 2020, countries of the region implement early detection, referral and treatment plan for diabetic retinopathy.

The National Eye Institute (NEI) of the National Institute of Health (NIH)’s Diabetic Eye Disease:  An Educator’s Guide, states that uncontrolled diabetes, can damage the blood vessels in your retina, “Over time, high blood sugar, blood pressure, and cholesterol can damage the tiny blood vessels in your retina.  These blood vessels may swell and become blocked. New, weaker blood vessels may form. When these changes occur, a person has developed some level of diabetic retinopathy.”

The specific test a diabetic should request from their eye doctor is a dilated eye exam. NIH Senior Health website states that a comprehensive dilated eye examination consists of four types of test:  dilation – drops are placed on the eye ball which causes the pupil to open wide; tonometry – measures the pressure in the eye; visual field test which assesses the patients peripheral vision; and finally the Visual Acuity Test which measures how well the patient sees at various distances.

Diabetics are encouraged to take charge of their health and be sure to get an annual dilated eye examination at least once a year, or as often as their eye specialist recommends. To learn more – click here.