In developed countries, this typically includes adult men who are shorter than 163 centimetres (5 ft 4 in) tall and adult women who are shorter than 150 centimetres (4 ft 11 in) tall.hus thousands of men under this height were denied the ability to fight in the war. As a result of pressure to allow them entry, special  Bantam Battalions  were created composed of men who were 5 feet 0 inches (152 cm) to 5 feet 3 inches (160 cm).
Optic nerve swelling due to inflammation is called optic neuritis. Optic neuritis may be the first sign of an autoimmune disease, such as multiple sclerosis. It can also be caused by certain infections, including measles, mumps, chicken pox, shingles, Lyme disease, cat scratch fever, meningitis and syphilis.
Glaucoma is one of the most common illnesses affecting the optic nerve. Glaucoma is caused by high intraocular pressure, or high pressure in the fluid that is inside the eye (vitreous fluid). This high pressure compresses the optic nerve and causes cells to die. It is referred to as atrophy of the optic nerve.