impairment of the sense of sight

vision that is 20/200 or worse in both eyes (20/200 vision is the ability to see at 20 feet what a normal eye can see at 200 feet)

sightlessness (especially because of a structural defect in or the absence of an eye)

temporary blindness caused by exposure to sunlight reflected from snow or ice

blindness due to loss of the eyes

inability to see shapes and contours