Vision - Common causes of low vision

Low vision is mean a term frequently optician for vision impairment, or sight that is not fully correctable with surgery, pharmaceuticals, contact lenses or glasses. Low vision can from a variety of diseases, disorders and injuries that result affected by the eye. Low vision can be caused by heredity. Many people with visual impairment age-related macular degeneration, cataract, glaucoma, diabetic retinopathy or. Age-related macular degeneration makes close to 45Percent of all cases of low vision.

Below are some of the most common causes of visual impairment:

Albinism. Albinism results from a lack of pigment. Some forms of albinism only on the eye (ocular), while other shapes and hair and eyes (oculocutaneous) affect skin color. Albinism is inherited.


Aniridia. Aniridia is the partial or total absence of the iris of the eye. The absence of the iris, in visual acuityLoss, light sensitivity and visual field defects.


Aphakia. Aphakia is the absence of the lens of the eye, the distance prevents ability to adapt to the different focus between objects.


Cataract. Cataracts from the lens of the eye are cloudy or opaque. The haze can occur over the entire lens or a small area of the lens. The surgical removal of the cataract may result in aphakia.


Coloboma. Coloboma is a birthDefect during fetal development, leading to underdevelopment, such as a column in the pupil, iris, ciliary body, lens, retina, choroid or optic nerve.


Glaucoma. Glaucoma is a disease resulting from an increase in pressure inside the eye, because of the false discharge of liquids, the optic nerve can cause damage to structures such as the eye.


Macular degeneration. Macular degeneration involves the gradual loss of sensitivity of thethe central part of the retina. Since this is connected to the area of the retina responsible for detailed vision, macular degeneration often see with the loss of central vision and the ability to fine details.


Nystagmus. Nystagmus is the involuntary movement of the eyes due to the inability to maintain a steady fixation. The movement can be mixed horizontal, vertical, circular, or.


Optic atrophy. Optic atrophy is the degeneration of the opticNerve. Loss of function of the optic nerve leads to a reduced ability to transmit electrical signals to the visual center of the brain.


ONH. This is a condition in which the number of nerve bundle in the optic nerve is reduced.


Retinitis pigmentosa. This is a progressive degeneration of retinal night blindness and peripheral field loss.


Retinopathy of prematurity. This is a condition inthe normal growth of blood vessels in the retina is disrupted during fetal development, often due to circumstances premature birth. This condition can lead to an increased risk of retinal tears or retinal detachment.

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