what is peripapillary atrophy
Peripapillary atrophy (PPA) is a clinical finding associated with chorioretinal thinning and disruption of the retinal pigment epithelium (RPE) in the area surrounding the optic disc. It is non-specific and can occur in both benign and pathologic conditions, including glaucoma 1 and high myopia 2.
What does Peripapillary mean?
Medical Definition of peripapillary : situated around the optic papilla.
Is Peripapillary atrophy normal?
Peripapillary atrophy is seen in a number of different disease states, but is also considered a normal aging phenomenon 12, 13.
What is Peripapillary atrophy in glaucoma?
Peripapillary Atrophy (PPA) Indicates Optic Disc Stiffening in Primary Open Angle Glaucoma (POAG) without Statistically Elevated Intraocular Pressure (IOP)
What is Peripapillary?
Medical Definition of peripapillary : situated around the optic papilla.
What causes choroidal crescent?
Similarly, choroidal crescents result from the absence of retinal tissue directly adjacent to the ONH, allowing more detailed visualization of the underlying choroidal pigment in the region. Crescents may change over time with globe elongation or other pathologies that cause retinal stretching.
Is Peripapillary atrophy common?
atrophy around the optic disc. This chorioretinal atrophy is known as peri-papillary or para-papillary atrophy (PPA), and is a relatively common finding.
Does glaucoma cause optic atrophy?
Eye diseases, such as glaucoma, can also cause a form of optic nerve atrophy. The condition can also be caused by diseases of the brain and central nervous system.
What causes Peripapillary atrophy?
Peripapillary atrophy (PPA) is a clinical finding associated with chorioretinal thinning and disruption of the retinal pigment epithelium (RPE) in the area surrounding the optic disc. It is non-specific and can occur in both benign and pathologic conditions, including glaucoma 1 and high myopia 2.
Can glaucoma cause retinal hemorrhage?
Healthy retinal blood vessels are capable of efficient autoregulation. Defects in this autoregulation have been reported in patients with glaucoma and may contribute to the development of retinal hemorrhage.
Why does glaucoma cause Peripapillary atrophy?
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How long does it take to go blind from optic nerve damage?
Some people may experience a sudden loss of vision and then the vision coming back after some time, while some might feel their vision getting blurry and slowly fading to complete blindness, in a matter of hours. Other symptoms include: Vision loss in one eye, varying in severity and may last for 7 to 10 days.
Does optic nerve atrophy cause blindness?
Optic atrophy results from damage to the optic nerve from many different kinds of pathologies. The condition can cause problems with vision, including blindness.
Does optic atrophy get worse?
In general, people with optic atrophy type 1 have worsening vision loss over time. However, some people only have mild vision loss, and for some people the vision loss does not worsen with time.
Can vision be restored after optic nerve damage?
With sufficient damage, sight is lost. Damage to the optic nerve is irreversible because the cable of nerve fibers doesn't have the capacity to regenerate, or heal itself, when damage occurs.
How long does it take to go blind from optic nerve atrophy?
Some people may experience a sudden loss of vision and then the vision coming back after some time, while some might feel their vision getting blurry and slowly fading to complete blindness, in a matter of hours. Other symptoms include: Vision loss in one eye, varying in severity and may last for 7 to 10 days.
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