The role of the retina is to convert the light rays that are refracted by the refractive system of the eye into bioelectrical signals that are transmitted via the optic nerve to the visual center of the brain, thus forming vision. The retina is the most delicate structure inside the eye and is composed mainly of photoreceptor cells and nerve cells. When external light is refracted by the cornea, lens and other refractive structures of the eye and projected onto the retina, it will stimulate the photoreceptor cells on the retina and convert them into bioelectrical signals, which will then be transmitted by the nerve cells to the visual center located in the occipital lobe of the brain, thus forming vision. If retinal lesions occur, it will seriously affect the patient’s vision, common macular degeneration, retinal detachment, diabetic retinopathy, etc. It is recommended that the patient undergoes regular funduscopic examination, which can detect the presence of retinopathy as early as possible. It is recommended that patients with retinopathy should consult a doctor in a timely manner to assess their condition and follow the doctor’s instructions for treatment.