Diabetic Retinopathy Epidemiology

• Diabetic retinopathy is a diabetic complication that affects the eyes, caused by damage to the blood vessels of the light-sensitive tissue at the back of the eye (retina). It can lead to vision impairment and blindness if left untreated. Early detection and management, including regular eye exams and blood sugar control, are crucial for preventing severe vision loss.
• The main factor related to the development and progression of diabetic retinopathy is poor blood sugar control. Consistently high blood sugar levels damage the blood vessels in the retina, leading to the onset and worsening of the condition.
• Diabetic eye disease progresses from non-proliferative diabetic retinopathy (NPDR), an early stage marked by leaky, damaged vessels causing retinal swelling, macular edema, and vision blurring, to proliferative diabetic retinopathy (PDR), an advanced stage characterized by abnormal new vessel growth, bleeding, scar formation, and a high risk of severe vision loss or retinal detachment.
• Diagnosis of diabetic retinopathy involves a dilated eye exam to check for retinal damage, fluorescein angiography to identify leaking blood vessels, and optical coherence tomography (OCT) to detect retinal swelling. Regular screenings are crucial for early detection. 

Among patients aged 25-74, diabetic retinopathy is a leading cause of vision loss. By 2030, an estimated 191 million people globally will have diabetic retinopathy, and approximately 56.3 million will have vision-threatening diabetic retinopathy.

Diabetic Retinopathy Epidemiology Forecast in the United States

• 2025 Prevalent Cases of Diabetic Retinopathy: XX
• 2036 Projected Prevalent Cases of Diabetic Retinopathy: XX
• Diabetic Retinopathy Growth Rate (2026–2036): XX% CAGR

DelveInsight's ‘Diabetic Retinopathy– Epidemiology Forecast – 2036’ report delivers an in-depth understanding of diabetic retinopathy, historical and forecasted epidemiology in the United States, EU4 (Germany, Spain, Italy, and France) and the United Kingdom, and Japan.

Diabetic Retinopathy Understanding and Diagnosis Algorithm

Diabetic Retinopathy Overview

Diabetic retinopathy is a diabetes-related microvascular disorder that results from chronic hyperglycemia, leading to progressive damage of retinal blood vessels and, in advanced stages, the formation of abnormal new vessels that can impair vision and cause blindness. It is one of the most common causes of severe vision loss among working-age adults, particularly in developed regions. The disease spectrum ranges from early non-proliferative changes such as microaneurysms, hard exudates, and diabetic macular edema to proliferative stages characterized by neovascularization. The risk and progression of diabetic retinopathy are strongly associated with poor glycemic control, hypertension, dyslipidemia, nephropathy, obesity, and other systemic factors. If left untreated, it can lead to irreversible retinal damage; however, early detection through regular eye examinations and timely intervention significantly improves visual outcomes. With the growing global burden of diabetes, the prevalence of diabetic retinopathy is expected to rise substantially, underscoring the importance of preventive care and disease management. 

Diabetic Retinopathy Diagnosis

Diabetic retinopathy is assessed through clinical history, ocular examination, and imaging. Patients may present with decreased or fluctuating vision, floaters, or visual field defects, while poor glycemic and blood pressure control are key risk factors. Fundus examination typically reveals microaneurysms, hemorrhages, hard exudates, cotton-wool spots, macular edema, and, in advanced stages, neovascularization. The disease is classified into nonproliferative (mild to severe) and proliferative stages, with the latter associated with a higher risk of vision loss due to abnormal vessel growth and hemorrhage. Diagnostic tools such as fluorescein angiography help detect vascular leakage and ischemia, while optical coherence tomography evaluates retinal thickness and macular edema. HbA1c remains an essential marker for monitoring glycemic control and disease progression.

Further details are provided in the report.

Diabetic Retinopathy Epidemiology

Key Findings from Diabetic Retinopathy Epidemiological Analysis and Forecast 

• According to CDC data, the prevalence of diabetic retinopathy in the US rises with age, affecting 13% of individuals under 25 and increasing to 28.4% among those aged 65–79. 
• Based on secondary analysis, among adults aged 40 and above, approximately 8.94 million are affected by diabetic retinopathy, with 1.71 million experiencing vision-threatening complications. These statistics highlight the urgent need for age-specific screening programs and early intervention strategies. 
• Diabetic retinopathy affects approximately 3%–4.1% of the European population, underscoring its significant impact on public health. Prevalence of diabetic retinopathy in those over age 60 is highest in France, followed by Germany. This prevalence highlights the growing burden of diabetes-related complications in the region, emphasizing the need for widespread screening, early detection, and proactive management to mitigate vision loss among affected individuals. 
• According to secondary analysis, at any given point, 15–30% of the diabetic population suffers from some form of diabetic retinopathy. Approximately half of the patients are unaware of their condition due to a lack of symptoms and mild non-proliferative disease that might go undetected. Although diabetic retinopathy, through diabetic macular edema and proliferative diabetic retinopathy, is the leading cause of vision loss among working-age populations in the US and many other countries, much of the causative ophthalmic pathology is treatable. 
• According to the American Association of Ophthalmology, non-proliferative diabetic retinopathy is notably prevalent across Europe, with the UK exhibiting the highest rate at 48%, followed by Spain at 38.9%, while Germany reports a significantly lower prevalence of 10%. These variations highlight regional disparities, emphasizing the need for tailored preventive strategies and healthcare interventions to address diabetic eye complications effectively

Scope of the Report

• The report covers a segment of an executive summary, a descriptive overview of Diabetic Retinopathy, explaining its causes, signs and symptoms, and pathogenesis.
• Comprehensive insight has been provided into the epidemiology segments and forecasts, the future growth potential of the diagnosis rate, and disease progression.

Report Insights

Diabetic Retinopathy Patient Population Forecast

Report Key Strengths

• Epidemiology‑based (epi‑based) Bottom‑up Forecasting
• 11-year Forecast 
• Patient Burden Trends (by geography)

FAQs

• What are the disease risks, burdens, and unmet needs of diabetic retinopathy? What will be the growth opportunities across the 7MM concerning the patient population with diabetic retinopathy?
• What is the historical and forecasted diabetic retinopathy patient pool in the US, EU4 (Germany, France, Italy, and Spain), the UK, and Japan?

Reasons to Buy

• Insights on patient burden/disease prevalence, evolution in diagnosis, and factors contributing to the change in the epidemiology of the disease during the forecast years.
• To understand key opinion leaders’ perspectives on the diagnostic challenges to overcome barriers in the future.
• Detailed insights into various factors hampering disease diagnosis and other existing diagnostic challenges.