174 relations: Accessory visual structures, Accommodation (eye), Achromatopsia, Acute (medicine), Amblyopia, Aniseikonia, Anisometropia, Anopsia, Anterior chamber of eyeball, Aphakia, Arcus senilis, Argyll Robertson pupil, Astigmatism, Band keratopathy, Binasal hemianopsia, Binocular vision, Bitemporal hemianopsia, Blepharitis, Blepharochalasis, Blepharophimosis, Brown's syndrome, Bullous keratopathy, Cataract, Central retinal artery occlusion, Central retinal vein occlusion, Central serous retinopathy, Chalazion, Chorioretinitis, Choroid, Choroideremia, Chronic progressive external ophthalmoplegia, Ciliary body, Color blindness, Congenital fourth nerve palsy, Conjugate gaze palsy, Conjunctiva, Conjunctivitis, Convergence insufficiency, Cornea, Corneal abrasion, Corneal dystrophy, Corneal neovascularization, Cutaneous condition, Cyclotropia, Cyst, Dacryoadenitis, Dacryocystitis, Degenerative disease, Deposit account, Diplopia, ..., Dry eye syndrome, Duane syndrome, Ectopia lentis, Ectropion, Endophthalmitis, Enophthalmos, Entropion, Epiphora (medicine), Episcleritis, Esophoria, Esotropia, Exophoria, Exophthalmos, Exotropia, Eye disease, Eye injury, Eye strain, Eyelid, Far-sightedness, Floater, Fourth nerve palsy, Fuchs spot, Fuchs' dystrophy, Glaucoma, Globe, H6, Health care, Hemeralopia, Herpesviridae, Heterochromia iridum, Heterophoria, Hollenhorst plaque, Human eye, Hypertensive retinopathy, Hypertropia, Hyphema, ICD-10, Inflammation, International Statistical Classification of Diseases and Related Health Problems, Internuclear ophthalmoplegia, Interstitial keratitis, Intraocular hemorrhage, Iridodialysis, Iris (anatomy), Kayser–Fleischer ring, Kearns–Sayre syndrome, Keratitis, Keratoconjunctivitis, Keratoconus, Krukenberg's spindle, Lacrimal apparatus, Lacrimal gland, Lagophthalmos, Lens (anatomy), List of ICD-9 codes 360–389: diseases of the sense organs, Macula of retina, Macular degeneration, Magnetism, Medical classification, Medication, Metamorphopsia, Miosis, Monofixation syndrome, Mydriasis, Near-sightedness, Nyctalopia, Nystagmus, Ocular hypertension, Ocular ischemic syndrome, Oculomotor nerve palsy, Opacities, Ophthalmoparesis, Optic disc, Optic disc drusen, Optic nerve, Optic neuritis, Optic neuropathy, Orbit, Panophthalmitis, Papilledema, Parasitic disease, Persistent pupillary membrane, Photokeratitis, Photophobia, Phthisis bulbi, Posterior pole, Presbyopia, Pterygium, Ptosis (eyelid), Pupil, Red eye (medicine), Refraction, Retinal, Retinal detachment, Retinal haemorrhage, Retinitis, Retinitis pigmentosa, Retinopathy, Retinopathy of prematurity, Retinoschisis, Rubeosis iridis, Scintillating scotoma, Sclera, Scleritis, Scotoma, Sixth nerve palsy, Stenosis, Strabismus, Stye, Subconjunctival hemorrhage, Symblepharon, Synechia (eye), Syphilis, Systemic inflammation, Trichiasis, Uveitis, Vascular disease, Vision disorder, Visual field, Visual impairment, Visual system, Vitreous body, World Health Organization, Xanthelasma. Expand index (124 more) » « Shrink index
Accessory visual structures are the adnexa of the eye, including the eyebrow, eyelids, and lacrimal apparatus.
Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies.
Achromatopsia (ACHM), also known as total color blindness, is a medical syndrome that exhibits symptoms relating to at least five conditions.
In medicine, describing a disease as acute denotes that it is of short duration and, as a corollary of that, of recent onset.
Amblyopia, also called lazy eye, is a disorder of sight due to the eye and brain not working well together.
Aniseikonia is an ocular condition where there is a significant difference in the perceived size of images.
Anisometropia is the condition in which the two eyes have unequal refractive power.
An anopsia or anopia is a defect in the visual field.
The anterior chamber (AC) is the fluid-filled space inside the eye between the iris and the cornea's innermost surface, the endothelium.
Aphakia is the absence of the lens of the eye, due to surgical removal, a perforating wound or ulcer, or congenital anomaly.
Arcus senilis is an old age syndrome where there is a white, grey, or blue opaque ring in the corneal margin (peripheral corneal opacity), or white ring in front of the periphery of the iris.
Argyll Robertson pupils (AR pupils or, colloquially, "prostitute's pupils") are bilateral small pupils that reduce in size on a near object (i.e., they accommodate), but do not constrict when exposed to bright light (i.e., they do not react to light).
Astigmatism is a type of refractive error in which the eye does not focus light evenly on the retina.
Band keratopathy is a corneal disease derived from the appearance of calcium on the central cornea.
Paris as seen with full visual fields Binasal hemianopsia (or binasal hemianopia) is the medical description of a type of partial blindness where vision is missing in the inner half of both the right and left visual field.
In biology, binocular vision is a type of vision in which an animal having two eyes is able to perceive a single three-dimensional image of its surroundings.
Bitemporal hemianopsia, also known as bitemporal heteronymous hemianopsia or bitemporal hemianopia, is the medical description of a type of partial blindness where vision is missing in the outer half of both the right and left visual field.
Blepharitis is one of the most common ocular conditions characterized by inflammation, scaling, reddening, and crusting of the eyelid.
Blepharochalasis is an inflammation of the eyelid that is characterized by exacerbations and remissions of eyelid edema, which results in a stretching and subsequent atrophy of the eyelid tissue, leading to the formation of redundant folds over the lid margins.
Blepharophimosis is a congenital condition characterized by a horizontally narrow palpebral fissure.
Brown's syndrome is a rare form of strabismus characterized by limited elevation of the affected eye.
Bullous keratopathy is a pathological condition in which small vesicles, or bullae, are formed in the cornea due to endothelial dysfunction.
A cataract is a clouding of the lens in the eye which leads to a decrease in vision.
Central retinal artery occlusion (CRAO) is a disease of the eye where the flow of blood through the central retinal artery is blocked (occluded).
The central retinal vein is the venous equivalent of the central retinal artery and, like that blood vessel, it can suffer from occlusion (central retinal vein occlusion, also CRVO), similar to that seen in ocular ischemic syndrome.
Central serous retinopathy (CSR), also known as central serous chorioretinopathy (CSC or CSCR), is an eye disease which causes visual impairment, often temporary, usually in one eye.
Chalazion is a cyst in the eyelid due to a blocked oil gland.
Chorioretinitis is an inflammation of the choroid (thin pigmented vascular coat of the eye) and retina of the eye.
The choroid, also known as the choroidea or choroid coat, is the vascular layer of the eye, containing connective tissues, and lying between the retina and the sclera.
Choroideremia (CHM) is a rare, X-linked recessive form of hereditary retinal degeneration that affects roughly 1 in 50,000 males.
Chronic progressive external ophthalmoplegia (CPEO), also known as progressive external ophthalmoplegia (PEO), is a type of eye disorder characterized by slowly progressive inability to move the eyes and eyebrows.
The ciliary body is a part of the eye that includes the ciliary muscle, which controls the shape of the lens, and the ciliary epithelium, which produces the aqueous humor.
Color blindness, also known as color vision deficiency, is the decreased ability to see color or differences in color.
*For acquired fourth nerve palsy, see fourth nerve palsy Congenital fourth nerve palsy is a condition present at birth characterized by a vertical misalignment of the eyes due to a weakness or paralysis of the superior oblique muscle.
Conjugate gaze palsies are neurological disorders affecting the ability to move both eyes in the same direction.
The conjunctiva lines the inside of the eyelids and covers the sclera (the white of the eye).
Conjunctivitis, also known as pink eye, is inflammation of the outermost layer of the white part of the eye and the inner surface of the eyelid.
Convergence insufficiency or convergence disorder is a sensory and neuromuscular anomaly of the binocular vision system, characterized by a reduced ability of the eyes to turn towards each other, or sustain convergence.
The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber.
Corneal abrasion is a scratch to the surface of the cornea of the eye.
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.
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.
A cutaneous condition is any medical condition that affects the integumentary system—the organ system that encloses the body and includes skin, hair, nails, and related muscle and glands.
Cyclotropia is a form of strabismus in which, compared to the correct positioning of the eyes, there is a torsion of one eye (or both) about the eye's visual axis.
A cyst is a closed sac, having a distinct membrane and division compared with the nearby tissue.
Dacryoadenitis is inflammation of the lacrimal glands (the tear-producing glands).
Dacryocystitis is an infection of the lacrimal sac, secondary to obstruction of the nasolacrimal duct at the junction of lacrimal sac.
Degenerative disease is the result of a continuous process based on degenerative cell changes, affecting tissues or organs, which will increasingly deteriorate over time, whether due to normal bodily wear or lifestyle choices such as exercise or eating habits.
A deposit account is a savings account, current account or any other type of bank account that allows money to be deposited and withdrawn by the account holder.
Diplopia, commonly known as double vision, is the simultaneous perception of two images of a single object that may be displaced horizontally, vertically, diagonally (i.e., both vertically and horizontally), or rotationally in relation to each other.
Dry eye syndrome (DES), also known as keratoconjunctivitis sicca (KCS), is the condition of having dry eyes.
Duane syndrome is a congenital rare type of strabismus most commonly characterized by the inability of the eye to move outwards.
Ectopia lentis is a displacement or malposition of the eye's crystalline lens from its normal location.
Ectropion is a medical condition in which the lower eyelid turns outwards.
Endophthalmitis is an inflammation of the interior of the eye.
Enophthalmos is the posterior displacement of the eyeball within the orbit due to changes in the volume of the orbit (bone) relative to its contents (the eyeball and orbital fat), or loss of function of the orbitalis muscle.
Entropion is a medical condition in which the eyelid (usually the lower lid) folds inward.
Epiphora is an overflow of tears onto the face.
Episcleritis is a benign, self-limiting inflammatory disease affecting part of the eye called the episclera.
Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance.
Esotropia is a form of strabismus in which one or both eyes turns inward.
Exophoria is a form of heterophoria in which there is a tendency of the eyes to deviate outward.
Exophthalmos (also called exophthalmus, exophthalmia, proptosis, or exorbitism) is a bulging of the eye anteriorly out of the orbit.
Exotropia is a form of strabismus where the eyes are deviated outward.
This is a partial list of human eye diseases and disorders.
Physical or chemical injuries of the eye can be a serious threat to vision if not treated appropriately and in a timely fashion.
Eye strain, also known as asthenopia (from Greek asthen-opia, ἀσθεν-ωπία, "weak-eye-condition"), is an eye condition that manifests through nonspecific symptoms such as fatigue, pain in or around the eyes, blurred vision, headache, and occasional double vision.
An eyelid is a thin fold of skin that covers and protects the human eye.
Far-sightedness, also known as hyperopia, is a condition of the eye in which light is focused behind, instead of on, the retina.
Floaters are deposits of various size, shape, consistency, refractive index, and motility within the eye's vitreous humour, which is normally transparent.
Fourth cranial nerve palsy also known as Trochlear nerve palsy, is a condition affecting Cranial Nerve 4 (IV), the Trochlear Nerve, which is one of the Cranial Nerves that causes weakness or paralysis to the Superior Oblique Muscle that it innervates.
The Fuchs spot, or sometimes Gokul-Fuchs' retinal spot, is a degeneration of the macula in case of high myopia.
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.
Glaucoma is a group of eye diseases which result in damage to the optic nerve and vision loss.
A globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere.
H6, H06, or H-6 may refer to.
Health care or healthcare is the maintenance or improvement of health via the prevention, diagnosis, and treatment of disease, illness, injury, and other physical and mental impairments in human beings.
Hemeralopia (from Greek ημέρα hemera, "day", and αλαός alaos, "blindness") is the inability to see clearly in bright light and is the exact opposite of nyctalopia (night blindness), the inability to see clearly in low light.
Herpesviridae is a large family of DNA viruses that cause diseases in animals, including humans.
Heterochromia is a difference in coloration, usually of the iris but also of hair or skin.
Heterophoria is an eye condition in which the directions that the eyes are pointing at rest position, when not performing binocular fusion, are not the same as each other, or, "not straight".
A Hollenhorst plaque a.k.a. "Eickenhorst plaque" is a cholesterol embolus that is seen in a blood vessel of the retina.
The human eye is an organ which reacts to light and pressure.
Hypertensive retinopathy is damage to the retina and retinal circulation due to high blood pressure (i.e. hypertension).
Hypertropia is a condition of misalignment of the eyes (strabismus), whereby the visual axis of one eye is higher than the fellow fixating eye.
Hyphema (or hyphaema, see spelling differences) is blood in the front (anterior) chamber of the eye.
ICD-10 is the 10th revision of the International Statistical Classification of Diseases and Related Health Problems (ICD), a medical classification list by the World Health Organization (WHO).
Inflammation (from inflammatio) is part of the complex biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants, and is a protective response involving immune cells, blood vessels, and molecular mediators.
The International Classification of Diseases (ICD) is the international "standard diagnostic tool for epidemiology, health management and clinical purposes." Its full official name is International Statistical Classification of Diseases and Related Health Problems. The ICD is maintained by the World Health Organization (WHO), the directing and coordinating authority for health within the United Nations System.
Internuclear ophthalmoplegia (INO) is a disorder of conjugate lateral gaze in which the affected eye shows impairment of adduction.
Interstitial keratitis (IK) is corneal scarring due to chronic inflammation of the corneal stroma.
Intraocular hemorrhage (sometimes hemophthalmos or hemophthalmia) is bleeding (hemorrhage) into the eyeball (oculus in Latin. It may be the result of physical trauma (direct injury to the eye) or medical illness. Severe hemorrhage, particularly when leading to rising pressure inside the eye, may lead to blindness.
Iridodialysis, sometimes known as a coredialysis, is a localized separation or tearing away of the iris from its attachment to the ciliary body.
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.
Kayser–Fleischer rings (KF rings) are dark rings that appear to encircle the iris of the eye.
Kearns–Sayre syndrome (KSS) is a mitochondrial myopathy with a typical onset before 20 years of age.
Keratitis is a condition in which the eye's cornea, the clear dome on the front surface of the eye, becomes inflamed.
Keratoconjunctivitis is inflammation ("-itis") of the cornea and conjunctiva.
Keratoconus (KC) is a disorder of the eye which results in progressive thinning of the cornea.
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.
The lacrimal apparatus is the physiological system containing the orbital structures for tear production and drainage.
The lacrimal glands are paired, almond-shaped exocrine glands, one for each eye, that secrete the aqueous layer of the tear film.
Lagophthalmos is the inability to close the eyelids completely.
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.
The macula or macula lutea is an oval-shaped pigmented area near the center of the retina of the human eye and some other animalian eyes.
Macular degeneration, also known as age-related macular degeneration (AMD or ARMD), is a medical condition which may result in blurred or no vision in the center of the visual field.
Magnetism is a class of physical phenomena that are mediated by magnetic fields.
Medical classification, or medical coding, is the process of transforming descriptions of medical diagnoses and procedures into universal medical code numbers.
A medication (also referred to as medicine, pharmaceutical drug, or simply drug) is a drug used to diagnose, cure, treat, or prevent disease.
Metamorphopsia is a type of distorted vision in which a grid of straight lines appears wavy and parts of the grid may appear blank.
Miosis is excessive constriction of the pupil.
Monofixation syndrome (MFS) (also: microtropia or microstrabismus) is an eye condition defined by less-than-perfect binocular vision.
Mydriasis is the dilation of the pupil, usually having a non-physiological cause, or sometimes a physiological pupillary response.
Near-sightedness, also known as short-sightedness and myopia, is a condition of the eye where light focuses in front of, instead of on, the retina.
Nyctalopia, also called night-blindness, is a condition making it difficult or impossible to see in relatively low light.
Nystagmus is a condition of involuntary (or voluntary, in rare cases) eye movement, acquired in infancy or later in life, that may result in reduced or limited vision.
Ocular hypertension is the presence of elevated fluid pressure inside the eye (intraocular pressure), usually with no optic nerve damage or visual field loss.
Ocular ischemic syndrome is the constellation of ocular signs and symptoms secondary to severe, chronic arterial hypoperfusion to the eye.
Oculomotor nerve palsy or third nerve palsy is an eye condition resulting from damage to the third cranial nerve or a branch thereof.
Opacities is the fourth EP by British progressive metal band SikTh.
Ophthalmoparesis or ophthalmoplegia refers to weakness (-paresis) or paralysis (-plegia) of one or more extraocular muscles which are responsible for eye movements.
The optic disc or optic nerve head is the point of exit for ganglion cell axons leaving the eye.
Optic disc drusen (ODD) or optic nerve head drusen (ONHD) are globules of mucoproteins and mucopolysaccharides that progressively calcify in the optic disc.
The optic nerve, also known as cranial nerve II, is a paired nerve that transmits visual information from the retina to the brain.
Optic neuritis is a demyelinating inflammation of the optic nerve.
Optic neuropathy is damage to the optic nerve from any cause.
In physics, an orbit is the gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet.
Panophthalmitis is the inflammation of all coats of the animal eye including intraocular structures.
Papilledema (or papilloedema) is optic disc swelling that is caused by increased intracranial pressure due to any cause.
A parasitic disease, also known as parasitosis, is an infectious disease caused or transmitted by a parasite.
Persistent pupillary membrane (PPM) is a condition of the eye involving remnants of a fetal membrane that persist as strands of tissue crossing the pupil.
Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense sunlight) or artificial (e.g. the electric arc during welding) sources.
Photophobia is a symptom of abnormal intolerance to visual perception of light.
Phthisis bulbi is a shrunken, non-functional eye.
In ophthalmology, the posterior pole is the back of the eye, usually referring to the retina between the optic disc and the macula.
Presbyopia is a condition associated with the aging of the eye that results in progressively worsening ability to focus clearly on close objects.
Pterygium refers to any winglike triangular membrane occurring in the neck, eyes, knees, elbows, ankles or digits.
Ptosis (/ˈtoʊsɪs/) is a drooping or falling of the upper eyelid.
The pupil is a hole located in the center of the iris of the eye that allows light to strike the retina.
A red eye is an eye that appears red due to illness or injury.
Refraction is the change in direction of wave propagation due to a change in its transmission medium.
Retinal is also known as retinaldehyde.
Retinal detachment is a disorder of the eye in which the retina separates from the layer underneath.
Retinal hemorrhage is a disorder of the eye in which bleeding occurs into the light sensitive tissue on the back wall of the eye.
Retinitis is inflammation of the retina in the eye, which can permanently damage the retina and lead to blindness.
Retinitis pigmentosa (RP) is a genetic disorder of the eyes that causes loss of vision.
Retinopathy is any damage to the retina of the eyes, which may cause vision impairment.
Retinopathy of prematurity (ROP), also called retrolental fibroplasia (RLF) and Terry syndrome, is a disease of the eye affecting prematurely born babies generally having received intensive neonatal care, in which oxygen therapy is used on them due to the premature development of their lungs.
Retinoschisis is an eye disease characterized by the abnormal splitting of the retina's neurosensory layers, usually in the outer plexiform layer.
Rubeosis iridis, also called neovascularization of the iris (NVI), is a medical condition of the iris of the eye in which new abnormal blood vessels (formed by neovascularization) are found on the surface of the iris.
Scintillating scotoma, also called visual migraine, is the most common visual aura preceding migraine and was first described by 19th-century physician Hubert Airy (1838–1903).
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.
Scleritis is a serious inflammatory disease that affects the white outer coating of the eye, known as the sclera.
A scotoma (Greek σκότος/skótos, darkness; plural: scotomas or scotomata) is an area of partial alteration in the field of vision consisting of a partially diminished or entirely degenerated visual acuity that is surrounded by a field of normal – or relatively well-preserved – vision.
Sixth nerve palsy, or abducens nerve palsy, is a disorder associated with dysfunction of cranial nerve VI (the abducens nerve), which is responsible for causing contraction of the lateral rectus muscle to abduct (i.e., turn out) the eye.
A stenosis is an abnormal narrowing in a blood vessel or other tubular organ or structure.
Strabismus, also known as crossed eyes, is a condition in which the eyes do not properly align with each other when looking at an object.
A stye, also known as a hordeolum, is a bacterial infection of an oil gland in the eyelid.
(Top) A stress induced subconjunctival hemorrhage in the left eye one week after hemorrhaging. (Bottom) Same hemorrhage four weeks after hemorrhaging. Some of the blood in the sclera has turned yellow, like a bruise. Subconjunctival hemorrhage, also known as subconjunctival haemorrhage and hyposphagma, is bleeding underneath the conjunctiva.
A symblepharon is a partial or complete adhesion of the palpebral conjunctiva of the eyelid to the bulbar conjunctiva of the eyeball.
A synechia is an eye condition where the iris adheres to either the cornea (i.e. anterior synechia) or lens (i.e. posterior synechia).
Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum.
Chronic systemic inflammation (SI) is the result of release of pro-inflammatory cytokines from immune-related cells and the chronic activation of the innate immune system.
Trichiasis a medical term for abnormally positioned eyelashes that grow back toward the eye, touching the cornea or conjunctiva.
Uveitis is the inflammation of the uvea, the pigmented layer that lies between the inner retina and the outer fibrous layer composed of the sclera and cornea.
Vascular disease is a class of diseases of the blood vessels – the arteries and veins of the circulatory system of the body.
A vision disorder is an impairment of the sense of vision.
The visual field is the "spatial array of visual sensations available to observation in introspectionist psychological experiments".
Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses.
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.
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.
The World Health Organization (WHO; French: Organisation mondiale de la santé) is a specialized agency of the United Nations that is concerned with international public health.
Xanthelasma is a sharply demarcated yellowish deposit of cholesterol underneath the skin, usually on or around the eyelids.