Syndromes, accompanied by glaucoma, are divided into two main categories: primary and secondary. Primary, in which glaucoma and the causes of increased resistance to outflow and increased intraocular pressure are unknown.
The optic nerve contains more than 1 million axons of retinal ganglion cells, whose bodies are located in the superficial layers of the retina. Despite some variability in the size and shape of the optic disc, most often the disc is a vertically oriented oval.
Glaucoma (from the Greek glaukos) - "watery blue". For the first time this term was mentioned in Hippocrates's "Aphorisms" about 400 BC. Over the next few hundred years, it was believed that glaucoma is a disease of the lens.