Retinal diseases refer to a group of conditions that affect the retina, the light-sensitive tissue at the back of the eye. Common retinal diseases include age-related macular degeneration, diabetic retinopathy, and retinal detachment. These conditions can lead to vision loss or blindness if not diagnosed and treated promptly. Symptoms of retinal diseases may include blurred vision, dark spots, or sudden changes in vision. Early detection through regular eye exams is crucial for managing these diseases. Treatments may involve medications, laser therapy, or surgery, depending on the specific condition and its severity.