Causes And Remedy Of Scotoma

Scotoma can be caused by many factors, suchone's independence can be affected by this retinal
as macular degeneration, strokes, traumatic braindisease.
injuries and disorders, which affect the retina orMost people suffering from central scotoma have
optic nerve. The most common form of blindto use their peripheral vision during most tasks.
spot is central scotoma, which is closelyThe formal term eccentric viewing is used to
associated with macular degeneration.describe this special viewing way. A person using
Actually, macular degeneration is the mosteccentric viewing always looks slightly away from
dangerous factor of scotoma, although otheran object in order to take use of his or her
conditions listed above all affect the retina or theperipheral vision, rather than the defected central
optic nerve. Central blind spot caused by macularvision. In this way, the damaged cone cells do
degeneration is quite understandable. In the backnothing but the rod cells can perform peripheral
of the retina, macula is responsible for centralvision effectively.
vision. However, macular degeneration can causeIn some instances, rod cells can be trained to
the photoreceptor cells or cone cells in the eye toperform some tasks that belong to cone cells in a
die, which results in central blind spot.person without central scotoma. These functions
In some cases, a central scotoma may enlarge asinclude detailed vision and color perception. But
the macular degeneration progresses. Besides aonly with proper training, lots of practice as well
spot in the central vision, a central scotoma hasas the appropriate visual aids can the rod cells
other symptoms such as need for more light, andacquire these functions. This process also requires
contrast, difficulty perceiving certain colors and sothe brain to learn new techniques and ways of
on. These symptoms can be quite disabling andseeing the world.
frustrating for some people. In serious cases,