SVG was developed by the W3C SVG Working Group starting in 1998, after six competing vector graphics submissions were received that year: Web Schematics, from CCLRC PGML, from Adobe, IBM, Netscape, and Sun
If the entire nerve is destroyed, blindness results. Glaucoma is a leading cause of blindness in the world, especially in older people. Early detection and treatment by your ophthalmologist are the keys to preventing optic nerve damage and vision loss from glaucoma.
Having certain structural defects within the eye is considered a possible cause of glaucoma. For example, some people have a narrow angle between the iris and the cornea, which can interfere with fluid drainage. Pressure in the eye can increase and cause damage leading to glaucoma.