The vitreous body Vitreous body The transparent, semigelatinous substance that fills the cavity behind the crystalline lens of the eye and in front of the retina. It is contained in a thin hyaloid membrane and forms about four fifths of the optic globe. Eye: Anatomy is a transparent, gelatinous substance that is present in the space between the lens Lens A transparent, biconvex structure of the eye, enclosed in a capsule and situated behind the iris and in front of the vitreous humor (vitreous body). It is slightly overlapped at its margin by the ciliary processes. Adaptation by the ciliary body is crucial for ocular accommodation. Eye: Anatomy and the retina Retina The ten-layered nervous tissue membrane of the eye. It is continuous with the optic nerve and receives images of external objects and transmits visual impulses to the brain. Its outer surface is in contact with the choroid and the inner surface with the vitreous body. The outermost layer is pigmented, whereas the inner nine layers are transparent. Eye: Anatomy, providing structural stability and maintaining the shape of the eye. Some conditions that can affect Affect The feeling-tone accompaniment of an idea or mental representation. It is the most direct psychic derivative of instinct and the psychic representative of the various bodily changes by means of which instincts manifest themselves. Psychiatric Assessment the vitreous body Vitreous body The transparent, semigelatinous substance that fills the cavity behind the crystalline lens of the eye and in front of the retina. It is contained in a thin hyaloid membrane and forms about four fifths of the optic globe. Eye: Anatomy are posterior vitreous detachment Vitreous Detachment Detachment of the corpus vitreum (vitreous body) from its normal attachments, especially the retina, due to shrinkage from degenerative or inflammatory conditions, trauma, myopia, or senility. Retinal Detachment, vitreous hemorrhage, synchysis scintillans, asteroid hyalosis, and persistent fetal vasculature. The conditions can be asymptomatic or present with floaters Floaters Chorioretinitis in the field of vision Vision Ophthalmic Exam, photopsia Photopsia Chorioretinitis, and decreased visual acuity Visual Acuity Clarity or sharpness of ocular vision or the ability of the eye to see fine details. Visual acuity depends on the functions of retina, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast. Ophthalmic Exam. Funduscopy and slit-lamp microscopy are commonly used in the diagnosis of these diseases. Treatment methods depend on the condition and severity, but may include observation, vision Vision Ophthalmic Exam correction, and surgery.
Last updated: 24 Mar, 2022
The vitreous body Vitreous body The transparent, semigelatinous substance that fills the cavity behind the crystalline lens of the eye and in front of the retina. It is contained in a thin hyaloid membrane and forms about four fifths of the optic globe. Eye: Anatomy is the substance present between the lens Lens A transparent, biconvex structure of the eye, enclosed in a capsule and situated behind the iris and in front of the vitreous humor (vitreous body). It is slightly overlapped at its margin by the ciliary processes. Adaptation by the ciliary body is crucial for ocular accommodation. Eye: Anatomy and the retina Retina The ten-layered nervous tissue membrane of the eye. It is continuous with the optic nerve and receives images of external objects and transmits visual impulses to the brain. Its outer surface is in contact with the choroid and the inner surface with the vitreous body. The outermost layer is pigmented, whereas the inner nine layers are transparent. Eye: Anatomy.
Diagram demonstrating the anatomy of the eye.
Image by Lecturio.Posterior vitreous detachment Vitreous Detachment Detachment of the corpus vitreum (vitreous body) from its normal attachments, especially the retina, due to shrinkage from degenerative or inflammatory conditions, trauma, myopia, or senility. Retinal Detachment is the separation of the vitreous body Vitreous body The transparent, semigelatinous substance that fills the cavity behind the crystalline lens of the eye and in front of the retina. It is contained in a thin hyaloid membrane and forms about four fifths of the optic globe. Eye: Anatomy from the internal limiting membrane of the retina Retina The ten-layered nervous tissue membrane of the eye. It is continuous with the optic nerve and receives images of external objects and transmits visual impulses to the brain. Its outer surface is in contact with the choroid and the inner surface with the vitreous body. The outermost layer is pigmented, whereas the inner nine layers are transparent. Eye: Anatomy.
B-scan ultrasonography showing anterior
vitreous detachment
Vitreous Detachment
Detachment of the corpus vitreum (vitreous body) from its normal attachments, especially the retina, due to shrinkage from degenerative or inflammatory conditions, trauma, myopia, or senility.
Retinal Detachment in image c.
Posterior
vitreous detachment
Vitreous Detachment
Detachment of the corpus vitreum (vitreous body) from its normal attachments, especially the retina, due to shrinkage from degenerative or inflammatory conditions, trauma, myopia, or senility.
Retinal Detachment is seen in image d.
Vitreous hemorrhage is extravasation of blood into the vitreous humor Humor Defense Mechanisms.
There are many causes of vitreous hemorrhage. Some common causes include:
Vitreous hemorrhage is usually painless and unilateral. Signs and symptoms include:
Fundus Fundus The superior portion of the body of the stomach above the level of the cardiac notch. Stomach: Anatomy photograph of the right eye Right Eye Refractive Errors showing vitreous hemorrhage.
Image: “ Fundus Fundus The superior portion of the body of the stomach above the level of the cardiac notch. Stomach: Anatomy photographs Photographs Ultrasound (Sonography) of right eye Right Eye Refractive Errors showing peripapillary, subhyaloid, vitreous hemorrhage and several flame shaped hemorrhages obscuring the view of the optic disc Optic disc The portion of the optic nerve seen in the fundus with the ophthalmoscope. It is formed by the meeting of all the retinal ganglion cell axons as they enter the optic nerve. Eye: Anatomy” by Smt Kanuri Shanthamma Center for Retina Retina The ten-layered nervous tissue membrane of the eye. It is continuous with the optic nerve and receives images of external objects and transmits visual impulses to the brain. Its outer surface is in contact with the choroid and the inner surface with the vitreous body. The outermost layer is pigmented, whereas the inner nine layers are transparent. Eye: Anatomy Vitreous Diseases, L V Prasad Eye Institute, Kallam Anji Reddy Campus, Banjara Hills, Hyderabad 500 034, India. License: CC BY 2.0, edited by Lecturio.Synchysis scintillans, also known as cholesterolosis Cholesterolosis Cholesterol-laden macrophages or foam cells in the lamina propria of the gallbladder Cellular Accumulations bulbi, is a degenerative condition defined by the accumulation of cholesterol Cholesterol The principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils. Cholesterol Metabolism crystals in liquefied vitreous humor Humor Defense Mechanisms.
Asteroid hyalosis is a condition in which calcium Calcium A basic element found in nearly all tissues. It is a member of the alkaline earth family of metals with the atomic symbol ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes. Electrolytes-lipid ( calcium Calcium A basic element found in nearly all tissues. It is a member of the alkaline earth family of metals with the atomic symbol ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes. Electrolytes soap) complexes are attached to the collagen Collagen A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of skin; connective tissue; and the organic substance of bones (bone and bones) and teeth (tooth). Connective Tissue: Histology framework of the vitreous body Vitreous body The transparent, semigelatinous substance that fills the cavity behind the crystalline lens of the eye and in front of the retina. It is contained in a thin hyaloid membrane and forms about four fifths of the optic globe. Eye: Anatomy.
The disease etiology is unknown.
Asteroid hyalosis is usually asymptomatic.
The diagnosis is made with slit-lamp microscopy, showing:
Multiple bright opacities suspended in the vitreous, consistent with asteroid hyalosis.
Image: “Asteroid hyalosis: multiple yellow mobile vitreous particles” by University of Mohamed V souissi, hôpital des Spécialités, Ophtalology A Department. License: CC BY 2.0, edited by Lecturio.Persistent fetal vasculature, formerly known as persistent hyperplastic Hyperplastic Colon Polyps primary vitreous, is a condition in which embryonic blood vessels fail to regress.
This condition is usually unilateral and may present with:
Persistent fetal vasculature is usually diagnosed right after birth.
Persistent fetal vasculature:
On
slit-lamp examination
Slit-Lamp Examination
Blepharitis, traction of the ciliary processes to the center of the posterior
capsule
Capsule
An envelope of loose gel surrounding a bacterial cell which is associated with the virulence of pathogenic bacteria. Some capsules have a well-defined border, whereas others form a slime layer that trails off into the medium. Most capsules consist of relatively simple polysaccharides but there are some bacteria whose capsules are made of polypeptides.
Bacteroides of the
lens
Lens
A transparent, biconvex structure of the eye, enclosed in a capsule and situated behind the iris and in front of the vitreous humor (vitreous body). It is slightly overlapped at its margin by the ciliary processes. Adaptation by the ciliary body is crucial for ocular accommodation.
Eye: Anatomy in the
left eye
Left Eye
Refractive Errors and a retrolental
mass
Mass
Three-dimensional lesion that occupies a space within the breast
Imaging of the Breast are identified.
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