When we reported that Samsung is using Gorilla Glass in their Galaxy S phones, a couple people wanted to see a demo -- you know, a key scratching against the glass or something of that sort. Enter those lovely, crazy Koreans.
Rarely, cataracts can present at birth or in early childhood as a result of hereditary enzyme defects, and severe trauma to the eye, eye surgery, or intraocular inflammation can also cause cataracts to occur earlier in life.
1 Cataracts. 2  Cataracts may cause ghost images, usually in one eye only. 3  This is because the clouding of the eye's natural lens that sits behind the pupil can cause light rays to scatter in different directions, creating multiple but incomplete images, especially when you look at lights.