Living with diabetes means managing many aspects of your health, and your eyes are no exception. Have you noticed your vision becoming a bit cloudy, or colors appearing less vibrant? These could be early signs of cataracts, a common eye condition that develops more frequently and often earlier in people with diabetes. Understanding the link between diabetes and cataracts, and knowing what steps to take, is important for protecting your sight.
Key takeaways
- Book routine eye checks even when your vision feels normal.
- Seek urgent eye care for sudden vision loss, new floaters, flashes, pain, or major blurring.
- Blood glucose, blood pressure, and cholesterol goals should be personalized with your care team.
Why this matters when you live with diabetes
Cataracts occur when the natural lens inside your eye becomes cloudy, leading to blurry vision, glare, and difficulty seeing at night. While cataracts are a normal part of aging, diabetes can accelerate their development and progression. High blood sugar levels can cause changes in the lens of your eye, making it more susceptible to clouding. This means that if you have diabetes, you’re at a higher risk of developing cataracts and may experience them at a younger age compared to those without diabetes.
Uncontrolled cataracts can significantly impair your daily activities, making it challenging to read, drive, or even recognize faces. For individuals with diabetes, maintaining good vision is especially important for tasks like monitoring blood glucose, preparing meals, and managing medications. Protecting your eyes is an integral part of your overall diabetes management plan.
What to do before you start
The most important step in protecting your vision from diabetes-related eye conditions, including cataracts, is to schedule and attend regular comprehensive dilated eye exams. These exams allow an eye care professional to thoroughly check the health of your eyes, often detecting problems before you even notice symptoms. If you have diabetes, you should have an eye exam at intervals recommended by your eye care professional, or more frequently if recommended by your doctor.
Beyond regular check-ups, proactive management of your diabetes is key. This includes maintaining blood glucose levels within your target range, managing blood pressure, and controlling cholesterol. These factors play a significant role in the health of the blood vessels in your eyes, which are vital for preventing complications like diabetic retinopathy that can coexist with cataracts.
Practical steps you can use this week
Recognizing the Signs of Cataracts
Cataracts often develop slowly and may not cause noticeable vision changes in their early stages. However, as they progress, you might experience:
- Cloudy, blurry, or dim vision
- Increasing difficulty with night vision
- Sensitivity to light and glare
- Seeing “halos” around lights
- Fading or yellowing of colors
- Frequent changes in eyeglass or contact lens prescriptions
- Double vision in one eye
If you notice any of these symptoms, it’s important to discuss them with your eye care professional promptly.
Screening and Diagnosis
During your annual dilated eye exam, your optometrist or ophthalmologist will perform several tests to check for cataracts and other diabetes-related eye conditions. This may include:
- Visual acuity test: To measure how well you see at various distances.
- Slit-lamp examination: To examine the structures at the front of your eye, including the lens.
- Retinal exam: After dilating your pupils, the doctor will examine the back of your eye for signs of diabetic retinopathy.
- Retinal photography: Sometimes used to document the condition of your retina.
Treatment Overview
In the early stages of cataracts, your eye doctor might suggest simple measures like stronger eyeglasses, anti-glare sunglasses, or brighter lighting. However, when cataracts significantly interfere with your vision and daily life, surgery is the most effective treatment. Cataract surgery is a common and generally safe procedure where the cloudy lens is removed and replaced with a clear artificial lens (intraocular lens or IOL).
For people with diabetes, careful pre-operative evaluation and careful blood glucose management before and after surgery is important to minimize risks and promote optimal healing. Your eye surgeon will work closely with your diabetes care team to ensure the best possible outcome.
When to call your healthcare professional
While regular eye exams are crucial, certain symptoms warrant immediate attention. Call your eye care professional or diabetes care team if you experience any sudden changes in your vision, such as:
- Sudden blurry vision or vision loss
- Flashes of light or new floaters (specks that drift across your vision)
- Eye pain or redness
- Any significant and rapid worsening of existing cataract symptoms
These could be signs of other serious eye conditions that require urgent treatment, especially for individuals with diabetes.
Questions to ask at your next visit
Preparing a list of questions can help you make the most of your appointments. Consider asking:
- “How often should I have my eyes checked given my diabetes?”
- “What are the specific signs of cataracts I should watch for?”
- “Are there any lifestyle changes I can make to slow cataract progression?”
- “If I need cataract surgery, what are the considerations for someone with diabetes?”
- “What is my risk for other diabetes-related eye conditions, like diabetic retinopathy?”
Medical note: This article is for education only and does not replace care from your healthcare professional. If you use insulin or medicines that can cause low blood glucose, are pregnant, have kidney disease, heart disease, vision problems, neuropathy, or other diabetes-related complications, discuss changes to food, activity, medicines, devices, or travel plans with your diabetes care team.