Diabetic macular edema (DME) is a condition that affects the eyes of people with diabetes. It occurs when fluid builds up in the macula, the central part of the retina responsible for sharp vision. This swelling can lead to blurred or distorted vision, making it difficult to see fine details. DME is often a result of damage to the blood vessels in the retina caused by high blood sugar levels. Early detection and treatment are crucial to prevent vision loss. Common treatments include laser therapy, injections, and medications to reduce swelling and improve vision.