View source for Kinds of Visual Impairments

=='''Glaucoma'''==

When pressure inside eye increases this problem can happen. The Vision can be impaired due to pressure and optic nerve can be damaged. Glaucoma is mostly seen in older adults.

=='''Macular degeneration'''== 

It is a slow and progressive deterioration of the most sensitive region of the retina. There is a loss of central vision. One is not able to see fine details. This problem is often age related. Risk for age related macular degeration can increase if excessive exposure to sunlight is there. Symptoms may include increased difficulty reading or watching TV, or distorted vision in which straight lines appear wavy or objects look larger or smaller than normal.

=='''Trachoma'''== 

It occurs due to a very contagious micro organism.  Because of over crowding and insanitary conditions this infection can be caused. So it is more common in areas of abject poverty. It causes inflammation in the eye. It's often found in poor rural countries that have overcrowded living conditions and limited access to water and sanitation. Such blindness has been eliminated from U.S.A.