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.
Age-related cataracts are divided into three types, depending on their location. Nuclear cataracts form in the middle of the lens and cause the nucleus, in the center, to become yellow or brown. Cortical cataracts are wedge-shaped and form around the edges of the nucleus.