definitions sclera
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Sclera The sclera (from the Greek skleros, meaning hard), also known as the white of the eye, is the opaque, fibrous, protective, outer layer of the eye containing collagen and elastic fiber.
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- SCLERA. The sclera is the fibrous outer protective coating of the eye. It is dense, white, and continuous with the cornea anteriorly. Its only opening is posterior, where the optic nerve and retinal vessels enter the eye. Its outer surface is covered by a thin vascular covering called episclera.
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What does sclera anicteric mean? The Sclera is the posterior opaque white/off-white surface of the eye; this dense fibrous tissue envelops the entire posterior surface of the eye, excluding the continuous ant … eriorly of the cornea, iris, and pupil which is at its center.he outside covering of the eye is a protective envelope of leathery connective tissue known as the sclera. This is the white coating on the outside of the eyeball, commonly k … nown as the white of the eye.
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- The sclera is the fibrous outer protective coating of the eye. It is dense, white, and continuous with the cornea anteriorly. Its only opening is posterior, where the optic nerve and retinal vessels enter the eye. Its outer surface is covered by a thin vascular covering called episclera.
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sclera sclera. pl. sclerae [L.] the tough, usually white, outer coat of the eyeball, covering all the posterior surface and continuous anteriorly with the cornea. The stroma is banded by loose connective tissue, the lamina fusca internally and episclera externally.
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The part of the eye whose function is similar to that of the aperture stop of camera.retina,iris,lens,cornea... The iris (say: EYE-riss) is the colorful part of the eye. When we say a person has blue eyes, we really mean the person has blue irises! The iris has muscles attached to it that change its shape. This allows the iris to control how much light goes through the pupil (say: PYOO-pul).
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- The sclera is the opaque white fibrous tissue of the eyeball itself. This fibrous tissue extends across the front of the eye, except where the cornea and iris are located in t … he center front of the eye, and it extends around to back of the eye where it meets the blood vessels and optic nerve.he Sclera is the posterior opaque white/off-white surface of the eye; this dense fibrous tissue envelops the entire posterior surface of the eye, excluding the continuous ant … eriorly of the cornea, iris, and pupil which is at its center.
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Sclera The sclera is opaque due to the irregularity of the Type I collagen fibers, as opposed to the near-uniform thickness and parallel arrangement of the corneal collagen.
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- I don't know if there is a word for the white part in the eye in the english language. But in German it's called Augenweiss. (Augenweiß sclera is Called sklera In, german and int the colloquial Language-lederhaut so it cannot be called). Sclera · max 8 years. ago
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- Here I will briefly describe various parts of the eye: Sclera. The sclera is the white of the eye. Don't shoot until you see their scleras.. Exterior is smooth and white. Interior is brown and grooved.
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- The white outer layer of the eyeball. At the front of the eye it is continuous with the cornea. Example sentences. 1  The remaining chapters include discussions of tumors of the orbit, eyelid, conjunctiva, cornea and sclera, uvea, and optic nerve. At the external border between the cornea and the sclera is the external scleral sulcus depression. 2  The limbus is the thin area that connects the cornea and the sclera, the white part of the eye.
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Scleritis Scleritis is an uncommon disease and is differentiated from episcleritis, which is a more common ocular condition. In episcleritis, only the superficial tissue between the white of the eye (sclera) and the blood vessel-filled covering (conjunctiva) is inflamed. Scleritis is an inflammation of the white of the eye. 2  It is serious eye disease which is often associated with underlying autoimmune disorders. 3  Prompt diagnosis and treatment is essential in preventing permanent vision loss.
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sclera sclera. n. 1. (Anatomy) the firm white fibrous membrane that forms the outer covering of the eyeball. Also called: sclerotic.
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The Sclera The sclera is where the muscles that cause our eyes movements are connected and when we look left or right, up or down, it is the sclera that is moving. The sclera is perhaps the most unglamorous and underappreciated part of the eye. It does not widen and narrow like the pupil.It does not have the bright colors of the iris that can add so much to the physical appeal of a person. It is just a white mass that does not seem to do much and to which nothing seems to happen.clera is not a well known term. If soldiers were to be told not to shoot until they could see the sclera of their enemy's eyes, they would be at a loss and not know what to do.
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Psl300H1: Human Physiology 1 The sclera (the white part of the eye) constitutes the rest of the globe. It is a tough connective tissue and is continuous with the cornea. Scleral collagen is, in composition and arrangement, more similar to that seen in skin, with wider fibrils and a much more interwoven structure than cornea.
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What is the function of the sclera? The outside covering of the eye is a protective envelope of leathery connective tissue known as the sclera. This is the white coating on the outside of the eyeball, commonly known as the white of the eye. It completely envelops the globe except at the front of the eye and maintains the shape of the globe.
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- Freebase(0.00 / 0 votes)Rate this definition: Nuclear sclerosis. Nuclear sclerosis is an age-related change in the density of the crystalline lens nucleus that occurs in all older animals. It is caused by compression of older lens fibers in the nucleus by new fiber formation. The denser construction of the nucleus causes it to scatter light.
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Chapter 46: The eye The sclera is the posterior, opaque part of the external tunic. Its anterior part can be seen through the conjunctiva as the white of the eye. The sclera consists of fibrous tissue, and it receives the tendons of the muscles of the eyeball.
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Sclera Sclera. The sclera is the part of the eye commonly known as the “white.” It forms the supporting wall of the eyeball, and is continuous with the clear cornea. The sclera is covered by the conjunctiva, a clear mucus membrane that helps lubricate the eye. It is thickest in the area surrounding the optic nerve.he sclera is made up of three divisions: the episclera, loose connective tissue, immediately beneath the conjunctiva; sclera proper, the dense white tissue that gives the area its color; and the lamina fusca, the innermost zone made up of elastic fibers.
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Top 30 Doctor insights on: Irritated Sclera Causes Confused: Do you mean the white part of the eyes? Are they red and irritated? The sclera is generically referred to as the white of the eye, made of a very tough type of protein. When it becomes red,  the causes can vary; from infection, to eye pressure, to injury, dryness of the cornea, allergy, etc. While some causes may be self-limited, others could blind you.
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Anatomy Of The Eye The white of the eye. The sclera gives the eye structural strength and protection for the inner elements of the eye. This is the outer clear covering over the center of the eye. The cornea acts like both a window and a lens. Light first enters the eye through the cornea. The shape of the cornea then acts as a lens to begin to bend or “refract” light toward a focal point at the back of the eye. The cornea is the primary focusing element of the eye. It is made up of five layers of material.
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VI DISORDERS OF SCLERA ROBERT M. KERSHNER, M.D., F.A.C.S. The sclera comprises a group of tissues that closely resemble the tough, fibrous tissue seen in the joints of vertebrates. Only the vertebrate population has a sclera, the invertebrates demonstrating an ocellus , which differs by being strengthened by cartilage and bone.
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sclera blue sclera abnormal blueness of the sclera; it is a prominent feature of osteogenesis imperfecta and is also seen in certain other conditions.(See Atlas 1, Part B.). , pl. the opaque, fibrous, protective layer of the eye containing collagen and elastic fibers. It is commonly known as the white of the eye. Because the sclera is thinner in children, some of the underlying eye pigment is visible, making the eye appear slightly bluish.
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Definitions &Translations Freebase (0.00 / 0 votes) Rate this definition: Scleritis. Scleritis is a serious inflammatory disease that affects the white outer coating of the eye, known as the sclera.
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sclera Modern Latin; from Classical Greek skl?ros, hard; from Indo-European base an unverified form (s)kel- , to dry out from source shallow. Origin of sclera.
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sclerosis sclerosis. an induration or hardening, especially of a part from inflammation, or in disease of the interstitial substance. The term is used chiefly for such a hardening of the nervous system due to hyperplasia of the connective tissue or for hardening of the blood vessels.Called also induration. adj., adj sclerot´ic.n induration or hardening, especially of a part from inflammation, or in disease of the interstitial substance. The term is used chiefly for such a hardening of the nervous system due to hyperplasia of the connective tissue or for hardening of the blood vessels.