Vision impairment and Blindness that means even with eyeglasses, contact lances, don’t see well.
What is Vision Impairment?
According to Wikipedia:
Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses. Some also include those who have a decreased ability to see because they do not have access to glasses or contact lenses.
What reasons vision impairment?
Vision impairment can be reason by damage to the eye itself that influence its ability to accept or procedure visual information. Impairment can also be due to the eye being shaped wrongly, which can make it harder to focus on things. it can also occur if the brain does not process visual information correctly. it can occur anytime throughout a person’s life, even before birth.
The majority of vision impairment is reason by illness and undernourishment. According to WHO approximation in 2002,
The most common reason of blindness around the world are:
- cataracts (47.8%)
- glaucoma (12.3%)
- uveitis (10.2%)
- age-related macular degeneration (AMD) (8.7%)
- trachoma (3.6%)
- corneal opacity (5.1%)
- diabetic retinopathy (4.8%), among other causes.
People of developing countries are considerably more probable to experience vision impairment as a result of treatable or avoidable conditions than are their complements in the developing world. Vision impairment is most people in over 60 age region, children in poorer communicate more than probable to affected by blindness.
Eye damages, the majority often happening in people under 30, are the most important reason for monocular blindness vision loss in one eye.
People with damages to the occipital lobe of the brain can, in spite of having undamaged eyes and optic nerves, still be legally or completely blind.
The most reasons happened before the child was born or before they were 1 month old. The most common reason is retinopathy of prematurely, which refers to irregular blood boat enlargement or scarring of the retina of the eye. Children who are born very early or who have very low birth weight are most at risk of having this state. Usually gets better on its own before severe damage can happen, and if not, it can often be treated.
However, small proportions of children have a severe form and will have low vision or blindness. Other common reason of vision impairment found were albinism a genetic condition that results in decreased skin pigmentation and affects parts of the eye, a condition in which there is too much fluid in the brain, a viral infection that occurs before a baby is born and where a baby does not get enough oxygen before or during birth.
The link between poverty and treatable vision impairment is most clear when conducting area contrast of reason. Most adult vision impairment is related to age-related macular degeneration and diabetic retinopathy.
Another common cause is retinopathy of prematurely.
A loss of vision means that you may have to reorganize your life and study new ways of doing things.