Congenital Blindness Causes
It can be partial or complete.
Congenital blindness causes. Blindness is the inability to see things including light. It is a disease which can damage the central vision needed to see well. Congenital blindness can occur and failure of the optic nerve foramen to remodel causes contracture of the optic nerve.
There are different degrees of visual impairment and some people who have a birth defect which affects the sensory organs only suffer from mild visual impairment. Retinopathy of prematurity a condition in which the retina of a baby born prematurely has not had time to develop properly can cause blindness in severe cases. Blindness in children can be defined as a visual acuity of 3 60 in the eye with better vision of a child under 16 years of age.
A population study in minnesota reported an incidence of 1 in 2287 live births 121. Macular degeneration is one of the common causes of blindness at age 60 and older. Blindness that exists from birth is known as congenital blindness.
One cause of congenital blindness is leber congenital amaurosis lca a rare degenerative disease in which the retinas do not function properly. Childhood blindness is an important cause contributing to the burden of blindness. Sometimes as in the case of coloboma the cause of a congenital eye defect is not known.
Congenital blindness has shown permanent increase in past 6 years in group with infectious and with non infectious causes. Cataracts are actually a major cause of blindness so pay attention to it. This also affects the possibility to read watch television drive and do daily activities.
This generally means that the child cannot see something 10 feet about 3 meter away that another child could see if it was 200 feet about 60 meters away. Learn about causes diagnosis treatment and more. Optic nerve hypoplasia is a cause of congenital blindness in children.
More than 60 percent of cases of blindness among infants are caused by inherited eye diseases such as congenital present at birth cataracts congenital glaucoma retinal degeneration optic atrophy and eye malformations. Congenital blindness and visually impaired of the most. What causes congenital blindness.
Genetic factors play a role in many kinds of eye disease including those diseases that are the leading cause of blindness among infants children and adults. In this case the baby will probably never be able to see. The etiology is unknown and is probably multifactorial although rare cases have been described in patients with mutations in early developmental genes hesx1 sox2 sox3 otx2.
Some conditions are immediately apparent in an infant while others may not become known until later in life.
