vitreous humor
No, the retina is not firmly attached to the choroid layer. There is a space filled with vitreous humor between the two layers called the subretinal space. This allows the retina to move slightly to accommodate changes in shape and maintain its function.
The clear gelatinous substance that fills the eyeball between the lens and the retina is called the vitreous humor. It helps maintain the shape of the eye and provides nourishment to the retina.
This is the middle layer of the eyeball and it is composed of the choroid, ciliary body and iris.
The choroid is a layer of the eye deep to the retina and superficial to the sclera. It provides oxygen and nutrients to the retina through its extensive network of capillaries. The retina itself does not have a huge vascular supply, because the vessels would interfere with the formation of the image in the eye. This is why the choroid is necessary. The choroid is also very heavily pigmented due to an abundance of melanin. This increased pigment allows the choroid to absorb excess light and minimize reflections within the eye. The choroid along with the iris and ciliary body make up what is known as the uveal tract.
Extreme short sightedness Hypermyopia is Retinal Detachment The retina is attached to the sclera in the back of the eye, and a retinal detachment occurs when it is pulled away from this normal position. The retina, like film in a camera, is responsible for creating the images that one sees. A good picture could not be produced if the film were not in its correct location within the camera, and we lose vision if the retina is not in its proper place within the eye. The retina detaches by separating from the back wall of the eye. When it is removed from its blood supply (the choroid), it will lose nourishment and result in a loss of some vision if not repaired in time. This retinal tear may be caused by trauma or by a vitreous detachment (or "posterior vitreous detachment"). Vitreous detachment, not uncommon in older people, results from the vitreous fluid shrinking and pulling away from the retina. This causes "floaters," which do not damage the retina or vision. Extreme short sightedness Hypermyopia is Retinal Detachment The retina is attached to the sclera in the back of the eye, and a retinal detachment occurs when it is pulled away from this normal position. The retina, like film in a camera, is responsible for creating the images that one sees. A good picture could not be produced if the film were not in its correct location within the camera, and we lose vision if the retina is not in its proper place within the eye. The retina detaches by separating from the back wall of the eye. When it is removed from its blood supply (the choroid), it will lose nourishment and result in a loss of some vision if not repaired in time. This retinal tear may be caused by trauma or by a vitreous detachment (or "posterior vitreous detachment"). Vitreous detachment, not uncommon in older people, results from the vitreous fluid shrinking and pulling away from the retina. This causes "floaters," which do not damage the retina or vision.
No, the retina is not firmly attached to the choroid layer. There is a space filled with vitreous humor between the two layers called the subretinal space. This allows the retina to move slightly to accommodate changes in shape and maintain its function.
No, the choroid is not the pigmented layer of the eye. The pigmented layer is called the retina, specifically the pigmented epithelium layer of the retina. The choroid is a vascular layer located behind the retina that provides oxygen and nutrients to the retina.
The clear gelatinous substance that fills the eyeball between the lens and the retina is called the vitreous humor. It helps maintain the shape of the eye and provides nourishment to the retina.
The vitreous humor helps keep the retina in place
This is the middle layer of the eyeball and it is composed of the choroid, ciliary body and iris.
The "Vitreous Jelly" or what you may mean, the vitreous humor, is clear gel (which I assume can be likened to glass), that is between the retina and lens of the human eye.
The choroid is a layer of the eye deep to the retina and superficial to the sclera. It provides oxygen and nutrients to the retina through its extensive network of capillaries. The retina itself does not have a huge vascular supply, because the vessels would interfere with the formation of the image in the eye. This is why the choroid is necessary. The choroid is also very heavily pigmented due to an abundance of melanin. This increased pigment allows the choroid to absorb excess light and minimize reflections within the eye. The choroid along with the iris and ciliary body make up what is known as the uveal tract.
The opaque middle layer of the eyeball is called the choroid. It is located between the retina and the sclera, providing blood supply to the retina and helping to nourish the eye tissues.
That depends on what you are referring to when you say below. If you mean below it to hold it in place in your eye then that is the ciliary body, which is between the iris and the choroid. If you mean behind the lens between it and the retina this is called the vitreous body. The vitreous body contains clear jelly like substance called the vitreous humor. Below is a link to All About Vision's anatomy of the eye resources page for more information.
choroid
Sclera, choroid, and the retina.
t makes sure that the eye stays in place. That is a horrible answer with no truth to it at all. The choroid is a layer of the eye deep to the retina and superficial to the sclera. It provides oxygen and nutrients to the retina through its extensive network of capillaries. The retina itself does not have a huge vascular supply, because the vessels would interfere with the formation of the image in the eye. This is why the choroid is necessary. The choroid is also very heavily pigmented due to an abundance of melanin. This increased pigment allows the choroid to absorb excess light and minimize reflections within the eye. The choroid along with the iris and ciliary body make up what is known as the uveal tract.