Dialysis and Diabetic Retinopathy: What Patients Need to Know

When someone with diabetes starts dialysis, it usually means the kidneys have reached an advanced stage of damage. At the same time, the eyes may also be at higher risk because the retina and the kidneys are both sensitive to long-term injury from high blood sugar, high blood pressure, and blood vessel disease.

This article explains how dialysis relates to diabetic retinopathy, why eye screening still matters, what symptoms deserve urgent attention, and what patients should realistically expect from eye care while living with dialysis.

🔎 Quick Navigation

• What is the link between dialysis and diabetic retinopathy?
• Why eye risk stays high on dialysis
• Symptoms patients should watch for
• Eye screening during dialysis care
• Eye tests often used
• Treatment options if retinopathy is found
• Practical tips for dialysis patients

Related Reading

• Kidney Disease and Diabetic Retinopathy
• Diabetic Retinopathy Stages
• Diabetic Eye Exam Schedule
• Diabetic Macular Edema
• Why Your Endocrinologist Matters in Diabetic Eye Disease

📌 Key Learning Points

• Dialysis and diabetic retinopathy often appear together because the kidneys and retina share the same small-vessel damage from diabetes.
• Starting dialysis does not mean diabetic retinopathy is cured or no longer dangerous.
• Some studies suggest macular swelling may improve after dialysis starts, while others show little immediate change, so eye follow-up must stay individualized.
• Patients on hemodialysis remain at high risk for diabetic retinopathy, diabetic maculopathy, cataract, and under-screening.
• Regular retinal exams, OCT scans when needed, and timely treatment still matter even after kidney failure treatment has begun.

👁 What Is the Link Between Dialysis and Diabetic Retinopathy?

Dialysis treats the job of failed kidneys. It helps remove waste, extra fluid, and electrolyte imbalance from the body. However, dialysis does not directly repair retinal blood vessel damage. That is why eye disease can still progress in patients receiving dialysis.

The kidneys and the retina have something important in common: both rely on delicate, small blood vessels. Long-standing diabetes can injure these vessels in both organs. In the kidneys, that damage may lead to chronic kidney disease and eventually dialysis. In the eye, that same type of injury may lead to diabetic retinopathy and diabetic macular edema.

In simple terms, dialysis and diabetic retinopathy often travel together because they are both consequences of severe diabetes-related microvascular disease.

This is also why people with diabetic kidney disease often have diabetic retinopathy, and why advanced kidney failure should never create a false sense of security about the eyes.

Why Eye Risk Stays High During Dialysis

Many patients reasonably ask, “If dialysis cleans my blood, will my eyes get better too?” The honest answer is: sometimes certain retinal findings may improve, but the risk does not disappear.

Research on hemodialysis and diabetic macular edema has shown mixed findings. Some studies found little short-term change in macular leakage or retinal thickness after dialysis sessions, while others reported anatomical improvement after hemodialysis initiation in selected patients with diabetic macular edema. In real life, this means dialysis may help fluid balance in some patients, but it should never be treated as a replacement for retinal treatment or screening.

Risk stays high for several reasons:

• Long diabetes duration: many dialysis patients have had diabetes for years.
• Shared blood vessel injury: the same damage affecting the kidneys also affects the retina.
• Blood pressure instability: swings in blood pressure may place additional stress on retinal circulation.
• Complex medical burden: anemia, fluid shifts, and multiple comorbidities can complicate care.
• Missed screening: dialysis schedules are demanding, and eye appointments may be delayed.

A recent systematic review in people with diabetes undergoing hemodialysis found a high prevalence of diabetic retinopathy and diabetic maculopathy, and also found that many patients had not been screened within the previous two years. That is a major practical issue. Even good retinal treatments cannot help if disease is found too late.

👀 Symptoms Patients Should Watch For

Diabetic retinopathy can be silent at first. A person on dialysis may feel overwhelmed by other health concerns and may ignore subtle eye changes. That is understandable—but risky.

Symptoms that deserve attention include:

• blurred or fluctuating vision
• difficulty reading small print
• dark spots or floaters
• wavy or distorted central vision
• poor night vision
• a sudden drop in vision

Some patients assume vision blur is “just from dialysis,” “just from sugar,” or “just from tiredness.” Sometimes that may be partly true—but it can also be the first clue to diabetic macular edema, vitreous hemorrhage, or advanced retinopathy.

Eye Screening During Dialysis Care

Dialysis should not replace diabetic eye screening. In fact, dialysis usually means eye screening becomes more important, not less.

The practical challenge is time. Patients on hemodialysis may already spend many hours each week traveling to and from treatment, sitting through dialysis, managing medications, and attending nephrology visits. Because of that burden, eye appointments may get postponed. Unfortunately, diabetic retinopathy does not pause while life becomes busy.

A practical approach is:

• keep regular retinal follow-up even after dialysis starts
• coordinate appointments around dialysis schedules when possible
• tell the eye clinic about dialysis days, fatigue, and transport challenges
• report new visual symptoms immediately instead of waiting for the next routine visit

Patients with known diabetic retinopathy may need more frequent visits than patients without retinal disease. The schedule should be based on the actual retinal findings, not just the dialysis status.

If screening logistics are difficult, the care team should think in systems: nephrology, endocrinology, primary care, and ophthalmology all need to work together. This is one reason multidisciplinary diabetes care matters so much in advanced disease.

🧪 Eye Tests Often Used in Dialysis Patients

Eye specialists do not guess what dialysis is doing to the retina. They look carefully and measure changes.

Common tests include:

• Dilated retinal examination — to look for hemorrhages, abnormal vessels, swelling, and traction.
• Optical coherence tomography (OCT) — to measure diabetic macular edema and monitor treatment response.
• Retinal photography — to document severity over time.
• Fluorescein angiography — in selected cases, to show leakage and ischemia.
• B-scan ultrasound — when dense bleeding blocks the doctor’s view inside the eye.

OCT is especially useful because it can show whether the macula is swollen. That matters because visual blur in a dialysis patient may come from several causes, and OCT helps clarify whether diabetic macular edema is part of the problem.

💊 Treatment Options if Retinopathy Is Found

Treatment depends on what the retina actually shows. Dialysis status changes the overall medical context, but the eye still needs retina-specific treatment decisions.

Anti-VEGF injections

These are commonly used for diabetic macular edema and some proliferative disease patterns. They help reduce leakage and abnormal blood vessel activity. Patients on dialysis may still need the same retina treatments used in non-dialysis patients, with scheduling adjusted to overall health and logistics.

Laser treatment

Panretinal photocoagulation (PRP) may be recommended for proliferative diabetic retinopathy. Focal or grid laser may still be used in selected situations. Laser is often valuable when abnormal new vessels threaten serious bleeding.

Vitrectomy surgery

If severe vitreous hemorrhage or tractional retinal detachment develops, vitrectomy may be necessary. Surgical planning may require especially careful coordination in dialysis patients because of systemic illness, blood pressure management, anticoagulation issues, and anesthesia considerations.

Systemic optimization

Retinal treatment works best when systemic care is also optimized. Blood pressure control, glucose management, nephrology care, anemia management, and medication review all matter. Dialysis is one part of the plan—it is not the whole plan.

The most realistic way to think about treatment is this: dialysis treats kidney failure; retina treatments treat retinal disease. Sometimes these two paths help each other, but they are not interchangeable.

Practical Tips for Patients on Dialysis

If you are balancing dialysis and diabetic retinopathy care, a few practical habits can make a real difference:

• Keep a simple list of your dialysis days and bring it to eye appointments.
• Tell the retina clinic if you feel too fatigued after dialysis for long exams.
• Bring all medication lists, especially blood thinners or antiplatelet medicines.
• Do not assume blurred vision after dialysis is harmless—report it.
• Ask whether your eye treatment visits can be coordinated around dialysis timing.
• Do not miss follow-up just because your kidneys are already being treated.

Family members and caregivers can help too. A patient on dialysis may already carry a heavy health burden. Eye care becomes easier when someone helps track appointments, transport, and red-flag symptoms.

Continue Reading

• Kidney Disease and Diabetic Retinopathy
• Diabetic Macular Edema
• Vitreous Hemorrhage in Diabetes
• Vitrectomy for Diabetic Retinopathy
• Endocrinologist and Diabetic Eye Disease

❓ Frequently Asked Questions

Does dialysis cure diabetic retinopathy?
No. Dialysis treats kidney failure, but it does not directly cure diabetic retinopathy.

Can dialysis improve diabetic macular edema?
Sometimes macular swelling may improve after dialysis starts, but results are mixed and eye treatment may still be needed.

Do dialysis patients still need dilated eye exams?
Yes. Dialysis patients with diabetes remain at significant risk for diabetic retinopathy and related eye complications.

Why do kidney disease and retinopathy often happen together?
Both are caused by long-term diabetes-related injury to small blood vessels.

What symptoms during dialysis care should trigger urgent eye review?
Sudden vision loss, flashes, a shower of floaters, or a curtain-like shadow in vision should be checked urgently.

Can dialysis scheduling make eye follow-up harder?
Yes. Frequent dialysis appointments can reduce screening attendance, which is why active care coordination is important.

📚 References

1. American Diabetes Association. Standards of Care in Diabetes—Retinopathy, Neuropathy, and Foot Care.
2. American Diabetes Association. Standards of Care in Diabetes—Chronic Kidney Disease and Risk Management.
3. ADA-KDIGO Consensus Report on Diabetes Management in Chronic Kidney Disease.
4. Tokuyama T, et al. Effects of haemodialysis on diabetic macular leakage.
5. Takamura Y, et al. Functional and anatomical changes in diabetic macular edema after hemodialysis initiation: one-year follow-up multicenter study.
6. Habte-Asres HH, et al. Diabetic eye screening in people with diabetes undergoing haemodialysis: a systematic review and meta-analysis.
7. He K, et al. The effect of long-term hemodialysis on diabetic retinopathy observed by swept-source OCT angiography.

🤝 Roque Eye Clinic Patient Education Series

Reviewed by the Roque Advisory Council
Dr Manolette Roque | Dr Barbara Roque
St Luke’s Medical Center Global City | Asian Hospital Medical Center
Philippines

Medical Review: Roque Advisory Council\
Last Updated: March 2026

This article is intended for educational purposes only and does not replace professional medical consultation.

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