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The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. [1]

77 relations: Albumin, Ancient Greek, Anterior chamber of eyeball, Aqueous humour, Blood, Blood vessel, Bowman's membrane, Cell (biology), Contact lens, Corneal abrasion, Corneal dystrophy, Corneal endothelium, Corneal epithelium, Corneal keratocyte, Corneal limbus, Corneal neovascularization, Corneal pachymetry, Corneal reflex, Corneal tattooing, Corneal topography, Corneal transplantation, Corneal ulcer, Cuboid, Curvature, Descemet's membrane, Diffusion, Dioptre, Dua's layer, Encyclopædia Britannica, Endothelium, Epithelium, Excimer laser, Eye, Eye disease, Eyelid, Fuchs' dystrophy, Human, Human eye, Immune privilege, Iris (anatomy), Keratitis, Keratoconus, Krukenberg's spindle, Laminin, Lamprey, LASIK, Lens (anatomy), Lens (optics), List of keratins expressed in the human integumentary system, Logarithmic spiral, ..., Long ciliary nerves, Lymph, Micrometre, Misnomer, Myelin, Nerve, Neurotrophin, Nidogen, Ophthalmic nerve, Optical power, Orthokeratology, Perlecan, Primate, Pulp (tooth), Pupil, Reflex, Refraction, Refractive index, Refractive surgery, Retina, Sclera, Stem cell, Stroma of cornea, Tears, Transparency and translucency, Trigeminal nerve, Visual system. Expand index (27 more) »


The albumins (formed from Latin: albumen "(egg) white; dried egg white") are a family of globular proteins, the most common of which are the serum albumins.

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Ancient Greek

The Ancient Greek language includes the forms of Greek used in ancient Greece and the ancient world from around the 9th century BC to the 6th century AD.

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Anterior chamber of eyeball

The anterior chamber (AC) is the fluid-filled space inside the eye between the iris and the cornea's innermost surface, the endothelium.

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Aqueous humour

The aqueous humour is a transparent, watery fluid similar to plasma, but containing low protein concentrations.

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Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.

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Blood vessel

The blood vessels are the part of the circulatory system, and microcirculation, that transports blood throughout the human body.

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Bowman's membrane

The Bowman's membrane (Bowman's layer, anterior limiting lamina, anterior elastic lamina) is a smooth, acellular, nonregenerating layer, located between the superficial epithelium and the stroma in the cornea of the eye.

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Cell (biology)

The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known living organisms.

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Contact lens

A contact lens, or simply contact, is a thin lens placed directly on the surface of the eye.

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Corneal abrasion

Corneal abrasion is a scratch to the surface of the cornea of the eye.

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Corneal dystrophy

Corneal dystrophy is a group of rare hereditary disorders characterised by bilateral abnormal deposition of substances in the transparent front part of the eye called the cornea.

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Corneal endothelium

The corneal endothelium is a single layer of cells on the inner surface of the cornea.

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Corneal epithelium

The corneal epithelium (epithelium corneæ anterior layer) is made up of epithelial tissue and covers the front of the cornea.

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Corneal keratocyte

Corneal keratocytes (corneal fibroblasts) are specialized fibroblasts residing in the stroma.

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Corneal limbus

The corneal limbus is the border of the cornea and the sclera (the white of the eye).

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Corneal neovascularization

Corneal neovascularization (CNV) is the in-growth of new blood vessels from the pericorneal plexus into avascular corneal tissue as a result of oxygen deprivation.

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Corneal pachymetry

Corneal pachymetry is the process of measuring the thickness of the cornea.

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Corneal reflex

The corneal reflex, also known as the blink reflex, is an involuntary blinking of the eyelids elicited by stimulation of the cornea (such as by touching or by a foreign body), though could result from any peripheral stimulus.

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Corneal tattooing

Corneal tattooing is the practice of tattooing the cornea of the human eye.

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Corneal topography

Corneal topography, also known as photokeratoscopy or videokeratography, is a non-invasive medical imaging technique for mapping the surface curvature of the cornea, the outer structure of the eye.

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Corneal transplantation

Corneal transplantation, also known as corneal grafting, is a surgical procedure where a damaged or diseased cornea is replaced by donated corneal tissue (the graft).

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Corneal ulcer

Corneal ulcer, or ulcerative keratitis, is an inflammatory or more seriously, infective condition of the cornea involving disruption of its epithelial layer with involvement of the corneal stroma.

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In geometry, a cuboid is a convex polyhedron bounded by six quadrilateral faces, whose polyhedral graph is the same as that of a cube.

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In mathematics, curvature is any of a number of loosely related concepts in different areas of geometry.

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Descemet's membrane

Descemet's membrane (or the Descemet membrane) is the basement membrane that lies between the corneal proper substance, also called stroma, and the endothelial layer of the cornea.

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Diffusion is the net movement of molecules or atoms from a region of high concentration (or high chemical potential) to a region of low concentration (or low chemical potential) as a result of random motion of the molecules or atoms.

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A dioptre (British spelling) or diopter (American spelling) is a unit of measurement of the optical power of a lens or curved mirror, which is equal to the reciprocal of the focal length measured in metres.

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Dua's layer

Dua's layer, according to a 2013 paper by Harminder Singh Dua's group at the University of Nottingham, is a layer of the cornea that had not been detected previously.

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Encyclopædia Britannica

The Encyclopædia Britannica (Latin for "British Encyclopaedia"), published by Encyclopædia Britannica, Inc., is a general knowledge English-language encyclopaedia.

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Endothelium refers to cells that line the interior surface of blood vessels and lymphatic vessels, forming an interface between circulating blood or lymph in the lumen and the rest of the vessel wall.

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Epithelium is one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue.

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Excimer laser

An excimer laser, sometimes more correctly called an exciplex laser, is a form of ultraviolet laser which is commonly used in the production of microelectronic devices, semiconductor based integrated circuits or "chips", eye surgery, and micromachining.

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Eyes are organs of the visual system.

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Eye disease

This is a partial list of human eye diseases and disorders.

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An eyelid is a thin fold of skin that covers and protects the human eye.

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Fuchs' dystrophy

Fuchs' dystrophy, also referred to as Fuchs' corneal endothelial dystrophy (FCED) and Fuchs' endothelial dystrophy (FED), is a slowly progressing corneal dystrophy that usually affects both eyes and is slightly more common in women than in men.

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Humans (taxonomically Homo sapiens) are the only extant members of the subtribe Hominina.

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Human eye

The human eye is an organ which reacts to light and pressure.

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Immune privilege

Certain sites of the human body have immune privilege, meaning they are able to tolerate the introduction of antigens without eliciting an inflammatory immune response.

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Iris (anatomy)

In humans and most mammals and birds, the iris (plural: irides or irises) is a thin, circular structure in the eye, responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina.

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Keratitis is a condition in which the eye's cornea, the clear dome on the front surface of the eye, becomes inflamed.

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Keratoconus (KC) is a disorder of the eye which results in progressive thinning of the cornea.

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Krukenberg's spindle

Krukenberg's spindle is the name given to the pattern formed on the inner surface of the cornea by pigmented iris cells that are shed during the mechanical rubbing of posterior pigment layer of the iris with the zonular fibrils that are deposited as a result of the currents of the aqueous humor.

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Laminins are high-molecular weight (~400 to ~900 kDa) proteins of the extracellular matrix.

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Lampreys (sometimes also called, inaccurately, lamprey eels) are an ancient lineage of jawless fish of the order Petromyzontiformes, placed in the superclass Cyclostomata.

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LASIK or Lasik (laser-assisted in situ keratomileusis), commonly referred to as laser eye surgery or laser vision correction, is a type of refractive surgery for the correction of myopia, hyperopia, and astigmatism.

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Lens (anatomy)

The lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina.

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Lens (optics)

A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.

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List of keratins expressed in the human integumentary system

There are many different keratin proteins normally expressed in the human integumentary system.

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Logarithmic spiral

A logarithmic spiral, equiangular spiral or growth spiral is a self-similar spiral curve which often appears in nature.

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Long ciliary nerves

The long ciliary nerves, two or three in number, are given off from the nasociliary nerve as it crosses the optic nerve.

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Lymph is the fluid that circulates throughout the lymphatic system.

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The micrometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is an SI derived unit of length equaling (SI standard prefix "micro-".

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A misnomer is a name or term that suggests an idea that is known to be wrong.

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Myelin is a lipid-rich substance that surrounds the axon of some nerve cells, forming an electrically insulating layer.

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A nerve is an enclosed, cable-like bundle of axons (nerve fibers, the long and slender projections of neurons) in the peripheral nervous system.

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Neurotrophins are a family of proteins that induce the survival, development, and function of neurons.

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Nidogens, formerly known as entactins, are a family of sulfated monomeric glycoproteins located in the basal lamina.

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Ophthalmic nerve

The ophthalmic nerve (first division of fifth cranial nerve, ophthalmic division of trigeminal nerve, first division of trigeminal nerve, CN V1, latin: nervus ophthalmicus) is the first branch of the trigeminal nerve.

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Optical power

Optical power (also referred to as dioptric power, refractive power, focusing power, or convergence power) is the degree to which a lens, mirror, or other optical system converges or diverges light.

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Orthokeratology (also referred to as Ortho-K, Overnight Vision Correction, Corneal Refractive Therapy and CRT), refers to the creation of gas permeable contact lenses that temporarily reshape the cornea to reduce refractive errors such as myopia, hyperopia and astigmatism.

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Perlecan (PLC) also known as basement membrane-specific heparan sulfate proteoglycan core protein (HSPG) or heparan sulfate proteoglycan 2 (HSPG2), is a protein that in humans is encoded by the HSPG2 gene.

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A primate is a mammal of the order Primates (Latin: "prime, first rank").

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Pulp (tooth)

The pulp, or endodontium, is the part in the center of a tooth made up of living connective tissue and cells called odontoblasts.

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The pupil is a hole located in the center of the iris of the eye that allows light to strike the retina.

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A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus.

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Refraction is the change in direction of wave propagation due to a change in its transmission medium.

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Refractive index

In optics, the refractive index or index of refraction of a material is a dimensionless number that describes how light propagates through that medium.

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Refractive surgery

Refractive eye surgery is any eye surgery used to improve the refractive state of the eye and decrease or eliminate dependency on glasses or contact lenses.

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The retina is the innermost, light-sensitive "coat", or layer, of shell tissue of the eye of most vertebrates and some molluscs.

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The sclera, also known as the white of the eye, is the opaque, fibrous, protective, outer layer of the human eye containing mainly collagen and some elastic fiber.

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Stem cell

Stem cells are biological cells that can differentiate into other types of cells and can divide to produce more of the same type of stem cells.

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Stroma of cornea

The substantia propria (or stroma of cornea) is fibrous, tough, unyielding, and perfectly transparent.

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Tearing, lacrimation, or lachrymation is the secretion of tears, which often serves to clean and lubricate the eyes in response to an irritation of the eyes.

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Transparency and translucency

In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without being scattered.

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Trigeminal nerve

The trigeminal nerve (the fifth cranial nerve, or simply CN V) is a nerve responsible for sensation in the face and motor functions such as biting and chewing; it is the largest of the cranial nerves.

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Visual system

The visual system is the part of the central nervous system which gives organisms the ability to process visual detail, as well as enabling the formation of several non-image photo response functions.

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[1] https://en.wikipedia.org/wiki/Cornea

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