Nearsightedness can't be prevented. Protect the eyes and vision by:having regular eye check-ups, reading in good light and avoiding dust and too much smoke, control diabetes and high blood pressure, wear sun glasses to protect the eyes from the sun, maintain a healthy diet with plenty of fruits and vegetables, quit smoking, use the right glasses and good lighting. Visit the nearest health unit for diagnosis and treatment if you experience sudden loss of vision, blurred vision and flashes of light.
Attribution: Straight Talk Foundation