The Connection Between Diabetes and Your Eyes
Can Your Eyes Show Signs of Diabetes?
When you think about managing diabetes, blood sugar, nutrition, medication, and physical health may come to mind first.
Over time, elevated blood sugar can damage the small blood vessels that supply the retina - the light-sensitive tissue at the back of the eye. These changes can develop before you notice any change in your vision. At LivingHope Vision Clinic, comprehensive eye examinations help us assess not only how clearly you see, but also the health of the structures inside your eyes.
Your Eyes and Blood Sugar: What's the Connection?
The retina needs a healthy network of tiny blood vessels to function properly. When blood sugar remains high over time, these blood vessels are damaged and cause them to leak fluid or blood which affects the surrounding retinal tissue.
Diabetes can also be associated with other eye conditions, including:
Diabetic retinopathy – damages to the blood vessels in the retina.
Diabetic macular edema – swelling involving the macula, which is responsible for detailed central vision.
Cataracts – clouding of the eye's natural lens.
Glaucoma – damage to the optic nerve that can lead to permanent vision loss.
The challenge is that diabetic eye disease can begin without obvious symptoms. Regular eye examinations allow these changes to be identified and monitored earlier.
What If Your Vision Seems Completely Normal?
This is where regular eye care becomes especially important. Some diabetic eye changes can develop before you notice a difference in how you see. Diabetes Canada notes that diabetic retinopathy often goes unnoticed until vision loss occurs.
You may still be able to:
Read normally
Drive comfortably
Recognize faces
Use your phone or computer
See clearly with your usual glasses or contact lenses
Changes inside the retina can occur before they interfere with everyday vision. This is why people with diabetes should not rely on blurred vision as the first indication that something is wrong.
What Can an Eye Exam Look For?
A diabetic eye examination involves much more than reading an eye chart. Depending on your eye health and medical history, your optometrist can assess:
The retina and its blood vessels
The macula
The optic nerve
Eye pressure
Changes in vision or prescription
Other signs of ocular disease
Retinal findings can also be compared with previous examinations to determine whether changes are stable or progressing. The recommended examination schedule depends on the type of diabetes, how long you have had diabetes, your retinal findings and your overall health. Your optometrist will recommend an appropriate follow-up schedule based on your individual risk.
Warning Signs That Need Prompt Attention
Although diabetic eye disease can develop without symptoms, contact an eye-care professional promptly if you develop:
Sudden or significant blurred vision
New spots or floaters
Flashes of light
Dark or missing areas in your vision
Sudden loss of vision
Sudden vision changes should not be ignored.
If you have diabetes:
Keep up with your recommended eye examinations.
Tell your optometrist about your diabetes and any changes in your health.
Pay attention to new or sudden vision changes.
Follow your healthcare team's recommendations for managing diabetes.
Don't rely on clear vision to determine whether your eyes are healthy.
Both type 1 and type 2 diabetes are at risk of diabetic retinopathy. Regular eye examinations help identify changes early and determine whether closer monitoring, treatment or referral are required.
Keep Your Eyes on Your Overall Health
Managing diabetes also means taking care of your eyes. A comprehensive eye examination can identify diabetic eye changes before they begin interfering with your everyday vision and provides an opportunity to monitor your eye health over time.
If you have diabetes or have noticed a change in your vision, schedule a comprehensive eye examination with LivingHope Vision Clinic. We provide comprehensive eye care for patients in Hamilton, Burlington, and surrounding communities, with a focus on early detection, ongoing monitoring, and protecting long-term eye health.
Make your eye health part of your diabetes care.
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