When a person has diabetes, they’re at risk of a debilitating eye condition called diabetic retinopathy. Essentially, elevated blood sugar levels damage blood vessels within the retina, leading to vision issues. Over time, it can even cause significant vision loss, if not blindness.
Like most medical conditions, diabetic retinopathy occurs in phases. By understanding the stages, it’s possible to slow the development, preserving visual acuity. If you’re not familiar with the phase of diabetic retinopathy, here’s what you need to know about them.
The Stages of Diabetic Retinopathy
Mild Nonproliferative Retinopathy
The first stage is mild nonproliferative retinopathy, also referred to as background retinopathy. During this phase, there are microaneurysms (small bulges) in the blood vessels in the retina, some of which may begin to leak.
During this stage, there may be no noticeable vision issues. Additionally, treatment might not be required, depending on severity. However, even if treatment isn’t necessary, it’s wise to take steps to prevent the progression of the condition. Managing blood sugar levels, maintaining healthy blood pressure, and keeping cholesterol in check can all make a difference.
Moderate Nonproliferative Retinopathy
Also called pre-proliferative retinopathy, moderate nonproliferative retinopathy is the second stage of the condition. At this point, blood vessels in the retina are starting to swell, altering their ability to transport blood.
As this occurs, diabetic macular edema (DME) can develop, causing blood and fluid to build up in the macula, a specific part of the retina. As the macula swells, central vision changes typically occur.
Severe Nonproliferative Retinopathy
Severe nonproliferative retinopathy is the third stage of the condition. At this point, blood vessel blockages are more common and severe, preventing blood from properly reaching and moving through the retinas. Scar tissue often begins forming. Additionally, poor blood flow triggers the formation of new blood vessels, some of which may cause issues as they develop.
If blood flow is cut off, macular ischemia occurs. Blurry vision and dark spots are both common symptoms. Also, the odds of serious and permanent vision loss are very high at this stage. While treatment may slow progression, restoring what’s lost often isn’t possible.
Proliferative Diabetic Retinopathy
During the fourth stage, new blood vessel growth in the retina and vitreous is increasingly common. That process is called neovascularization, and the resulting vessels are often weak, thin, and prone to bleeding. When bleeding occurs, more scar tissue forms, causing further issues.
When the scar tissue shifts, it can pull the retina away from its position in the eye, resulting in retinal detachment. If that occurs, severe and permanent vision loss often occurs.
Managing Diabetic Retinopathy
If you’re at risk of diabetic retinopathy or are actively in one of the stages, working with an eye care professional is essential. They can monitor your condition and determine if treatments are necessary to slow or prevent the progression of the disease.
At ECVA, the safety and health of our patient’s eyes are our priority. If you have signs or symptoms of diabetic retinopathy, the ECVA team is here to help. Schedule an appointment at your closest ECVA clinic today.
