Macular edema occurs when fluid builds up in the macula, the central part of the retina, causing swelling and blurred vision. It is often linked to diabetic retinopathy, age-related macular degeneration, or retinal vein occlusion. Symptoms include blurry or wavy vision and color distortion. Treatment typically involves anti-VEGF injections, corticosteroids, or laser therapy to reduce fluid and swelling. Precautions include managing underlying conditions like diabetes, controlling blood pressure, and regular eye check-ups to detect and treat early signs. For early detection, visit Dr. Maria's Eye Clinic in Saligramam, Chennai, near Vadapalani, Virugambakkam, and Valasaravakkam—remember, prevention is better than cure.