define vitreous
a8021d1ba5b9b2957c817d4440a1a4e6
- home / medterms medical dictionary a-z list / vitreous definition Medical Definition of Vitreous Vitreous: A clear, jelly-like substance that fills the middle of the eye. Also called the vitreous humor, humor in medicine referring to a fluid (or semifluid) substance. Eye Diseases Pictures Slideshow
719593ba4ac6537b09ff39b70c783e17
Eye Floaters/Retina This fluid is secreted from the ciliary body, then percolates around the lens, flushes the cornea and the iris, and finally exits through the angle of the eye that can become blocked in glaucoma. The vitreous humor is gelatinous in texture. This fluid fills all of the inside of the eye behind the lens. It develops before birth to support the retina and allow blood vessels to nourish the lens during fetal life.
07beab0ddac81c0ce00292d3deed6637
Posterior Vitreous Detachment (PVD) is a natural change that occurs during adulthood, when the vitreous gel that fills the eye separates from the retina, the light-sensing nerve layer at the back of the eye.Download Fact Sheet Large-Print Version Most patients experience floaters and flashes during the first few weeks of a PVD, but in some cases the symptoms are hardly noticeable. If PVD is complicated by vitreous hemorrhage, retinal detachment, epiretinal membrane, or macular hole, the flashes and floaters may be accompanied by decreased or distorted vision.
18c5290b4c5ae378d7d1a442f5d25500
Vitreous detachment Most of the eye’s interior is filled with vitreous. There are millions of fine fibers intertwined within the vitreous that are attached to the surface of the retina. As we age, the vitreous slowly shrinks, and these fine fibers pull on the retinal surface. Usually the fibers break, allowing the vitreous to separate and shrink from the retina. This is a vitreous detachment.
d60f57b409a0a7d81474d9ae0b178c3e
- The vitreous body of the eye is a clear gel that fills the space between the retina and the lens. The retina, the macula, and the vitreous body can all be subject to disease and conditions that can lead to blindness or vision interruption and may require the attention of a retina specialist.
c21220faa893608d573f44811dece436
What is a vitreous detachment? A vitreous detachment is a condition in which a part of the eye called the vitreous shrinks and separates from the retina.The vitreous is a gel-like substance that fills the inside of the eye ball. The retina is a light-sensitive area at the back of the eye. vitreous detachment is a condition in which a part of the eye called the vitreous shrinks and separates from the retina.
cbeeffd63e99ff2aae563ceb14170a10
Vitreous After passing through the cornea, aqueous humor and lens (anterior segment of the eye), light finally enters the vitreous (also called vitreous humor). is a transparent, jelly-like substance that fills the vitreous body. The vitreous body is the space created by the lens, retina and optic disc. This is also referred to as the posterior segment of the eye. The main functions of the vitreous are to transmit light to the retina, and to exert enough pressure to keep the retinal layers tightly pressed together. This pressure helps maintain the round shape of the eye so the lens can focus sharp images on the retina. The vitreous is very different from the aqueous humor.
249be86cb7bcf65e10f70cc258eec91c
Definitions &Translations Definitions for vitrified. Here are all the possible meanings and translations of the word vitrified. Princeton's WordNet(0.00 / 0 votes)Rate this definition: glassy, vitreous, vitrified(adj) (of ceramics) having the surface made shiny and nonporous by fusing a vitreous solution to it. glazed pottery; glassy porcelain; hard vitreous china used for plumbing fixtures.
59f047f73a98c374620b42582b9f9fb8
- The vitreous is made up mainly of water and. collagen and it has a stiff, jelly-like consistency. As you age the vitreous becomes more watery, less jelly-like and isn’t able to keep its usual. shape. As a result, it begins to move away from. the retina at the back of the eye towards the. centre of your eye.
723483d355ef0850870018e552316a4c
Vision Is the posterior segment( cavity) filled with a clear gel called vitreous humor that transmits light, supports the posterior surface of the lens, holds the retina firmly again … st the pigmented layer, and contributes to intraocular pressure...
83aae4e6527e0019c8f735c4bd950560
Vitreous body The vitreous body is the clear gel that fills the space between the lens and the retina of the eyeball of humans and other vertebrates. It is often referred to as the vitreous humour or simply the vitreous.
762eaf1cb9a96ec26a3b071ef0d4d817
- Vitreous Humour. A transparent, jelly-like substance that forms the main bulk of the eyeball. While it maintains the shape of the eye, it also refracts light onto the Retina. Lens. The Lens is a transparent, round, biconvex structure.
06b88febfaea4c1d24b5c34956d0bc38
What is a vitreous detachment? What is a vitreous detachment? A vitreous detachment is a condition in which a part of the eye called the vitreous shrinks and separates from the retina. The vitreous is a gel-like substance that fills the inside of the eye ball. The retina is a light-sensitive area at the back of the eye. A vitreous detachment is also known as a posterior vitreous detachment.
a7ab19a8754e5e717a3ebfae23255efb
- Vitreous china is a ceramic material, such as porcelain, that is glazed with enamel. The vitreous china coating is applied later on in the heating process. Vitreous china and porcelain cost about the same, however, vitreous china is better at resisting spills, scrapes, or other bathroom mishaps. The high gloss enamel is very durable and creates a stain-resistant surface. Also, vitreous china has sanitary properties which are great to use in the bathroom.
114af8fda009e16bbc8674b8f470f523
- Kellogg Eye Center Vitreous Degeneration 1 ! Vitreous Degeneration This material will help you understand vitreous degeneration and how it is treated. What is vitreous degeneration? Vitreous is the gel-like substance that fills the inside of the eye behind the lens (see image on the right). Before you were born, it helped maintain the shape of the eye and nourish the eye as it developed.
673227777caba51f783b4e17d4ac8e10
Shell script check if file or directory exists In shell scripting we often need to check if file or directory exists and take appropriate action. This post show you how to check it and how this check use in your script. For checking we will use file test operators -f for file and -d for directory, which return TRUE if file or directory exists. And here is output of the script.
73b24d8b5a3fc9212bb07b26f99b60a8
Central Serous Retinopathy Central serous retinopathy is a slight accumulation of fluid in the macular region of the eye thatlies between the retinal pigment epithelium and the outer segments.entral serous retinopathy is due to a leakage, of unknown origin, through the pigment epithelium.
0225244aae452d6c0b7e9ab88f29d382
Vitreous Humor and Eye Floaters However, the gel in the vitreous body is not. Therefore, if debris from these tiny breaks in the retina get into the vitreous humor, they will remain there. This debris or tiny specks of tissue are called floaters. They may look like dots, dust, cob webs or strings in your vision. You are actually seeing the shadow of this debris as light is cast onto your retina.
9236187e2970cbe5597fdb6d8ed5b57a
What is Vitreous detachment? Vitreous detachment is the separation of the eye's internal clear gel (vitreous) from the eye wall or retinal. A ...
a0ce799a9857fd05ef6944878b6bf94c
Proliferative Vitreo-Retinopathy Norman D. Radtke, MD. Proliferative vitreo-retinopathy (PVR) is the most common cause of failed repair of a retinal detachment and occurs when scar tissue creates traction on the retina.VR is characterized by proliferation of retinal pigment epithelial cells, glial cells, and inflammatory cells on the surface of the retina and within the vitreous gel. Traction is the key feature in the pathogenesis of PVR. The location, extent and severity of traction vary substantially.
00d25fdeffeb8e8fdef8c22061f05622
Vitrectomy And Vitreoretinal Eye Surgery Removal of vitreous gel (Vitrectomy) is done to repair many of the retinal disorders, which were previously considered inoperable. The procedure is done through three tiny incisions in the eye for three separate instruments. These incisions are placed in the pars plana of the eye, which is located between the iris and retina. Entering the eye through this location avoids damage to the retina and the crystalline lens. The instruments, which pass through these incisions, include a light pipe, an infusion port, and the vitreous cutting device. The light pipe is the high-intensity flashlight and is used to illuminate inside of the eye.
4e8e84d58da4ffbeb64685d87c889f44
Products & Services InTouch Health Solutions InTouch has invested over $50M into a cloud infrastructure, so you don’t have to. Our established, reliable and scalable global telehealth platform includes seven U.S.-hosted data centers covering the Americas, and three additional locations in Asia and Europe.
a7beda4f211fb7488c2c8c846cde91fa
Anatomy and Physiology of the Eye Vitreous Cavity. The vitreous cavity is located behind the lens and in front of the retina. It is filled with a gel-like fluid, called the vitreous humor. The vitreous humor helps maintain the shape of the eye.Medically Reviewed by a Doctor on 12/1/2014.he vitreous cavity is located behind the lens and in front of the retina. It is filled with a gel-like fluid, called the vitreous humor. The vitreous humor helps maintain the shape of the eye. Medically Reviewed by a Doctor on 12/1/2014.
0e1ab297724dfd982c78712fba823a45
aqueous humor aqueous. watery; prepared with water. aqueous-blood barrier. see blood-aqueous barrier. aqueous flare. turbidity of the aqueous humor caused by increased protein levels and cells. aqueous humor. the fluid produced by the ciliary process in the eye and occupying the anterior and posterior chambers. It provides nourishment for the lens and cornea and maintains the ocular pressure, and hence the optical integrity of the eyeball. Disturbance of its drainage through the corneoiridial angle can induce glaucoma and other disorders.
f832eb5ee0d27eae8cccec522e06ad83
Vitreous Humor and Eye Floaters The vitreous humor is a clear gel-like substance that is composed mostly of water and gives the eye its shape and form. Vitreous Humor Function Light enters the eye through the cornea, pupil, and lens, and is then transmitted through the vitreous humor to the retina. It fills the space between the lens and the retina (80% of the volume of the eyeball) which lines the back of the eye and helps to keep the retina in place by pressing it against the choroid.
f25897ae791453bc26a188c756c43fb9
vitreous humor Definition of vitreous humor. : the clear colorless transparent jelly that fills the eyeball posterior to the lens — see eye illustration.