This is a partial list of

human eye The human eye is a sensory organ in the visual system that reacts to light, visible light allowing eyesight. Other functions include maintaining the circadian rhythm, and Balance (ability), keeping balance. The eye can be considered as a living ...

diseases and disorders. The World Health Organization (WHO) publishes a classification of known diseases and injuries, the

International Statistical Classification of Diseases and Related Health Problems The International Classification of Diseases (ICD) is a globally used medical classification that is used in epidemiology, health management and clinical diagnostics, diagnosis. The ICD is maintained by the World Health Organization (WHO), which ...

, or ICD-10. This list uses that classification.

H00-H06 Disorders of eyelid, lacrimal system and orbit

* (H02.1) Ectropion * (H02.2) Lagophthalmos * (H02.3) Blepharochalasis * (H02.4) Ptosis * (H02.5)

Stye A stye, also known as a hordeolum, is a bacterial infection of an oil gland in the eyelid. This results in a red tender bump at the edge of the eyelid. The outside or the inside of the eyelid can be affected. The cause of a stye is usually a b ...

, an acne type infection of the sebaceous glands on or near the eyelid. * (H02.6)

Xanthelasma Xanthelasma is a sharply demarcated yellowish deposit of cholesterol underneath the skin. It usually occurs on or around the eyelids (''xanthelasma palpebrarum'', abbreviated XP). While they are neither harmful to the skin nor painful, these mino ...

of eyelid * (H03.0*) Parasitic infestation of eyelid in diseases classified elsewhere **

Dermatitis Dermatitis is a term used for different types of skin inflammation, typically characterized by itchiness, redness and a rash. In cases of short duration, there may be small blisters, while in long-term cases the skin may become thickened ...

of eyelid due to

Demodex ''Demodex'' is a genus of tiny mites that live in or near hair follicles of mammals. Around 65 species of ''Demodex'' are known. Two species live on humans: ''Demodex folliculorum'' and ''Demodex brevis'', both frequently referred to as eyelash ...

species ( B88.0+ ) ** Parasitic infestation of eyelid in: ***

leishmaniasis Leishmaniasis is a wide array of clinical manifestations caused by protozoal parasites of the Trypanosomatida genus ''Leishmania''. It is generally spread through the bite of Phlebotominae, phlebotomine Sandfly, sandflies, ''Phlebotomus'' an ...

( B55.-+ ) ***

loiasis ''Loa loa'' filariasis, (Loiasis) is a skin and eye disease caused by the nematode worm ''Loa loa''. Humans contract this disease through the bite of a deer fly (''Chrysops'' spp.) or mango fly, the Vector (epidemiology), vectors for ''Loa loa' ...

( B74.3+ ) ***

onchocerciasis Onchocerciasis, also known as river blindness, is a disease caused by infection with the parasitic worm ''Onchocerca volvulus''. Symptoms include severe itching, bumps under the skin, and blindness. It is the second-most common cause of blindne ...

( B73+ ) *** phthiriasis ( B85.3+ ) * (H03.1*) Involvement of eyelid in other infectious diseases classified elsewhere ** Involvement of eyelid in: *** herpesviral (

herpes simplex Herpes simplex, often known simply as herpes, is a viral disease, viral infection caused by the herpes simplex virus. Herpes infections are categorized by the area of the body that is infected. The two major types of herpes are Cold sore, ora ...

) infection ( B00.5+ ) ***

leprosy Leprosy, also known as Hansen's disease (HD), is a Chronic condition, long-term infection by the bacteria ''Mycobacterium leprae'' or ''Mycobacterium lepromatosis''. Infection can lead to damage of the Peripheral nervous system, nerves, respir ...

( A30.-+ ) *** molluscum contagiosum ( B08.1+ ) ***

tuberculosis Tuberculosis (TB), also known colloquially as the "white death", or historically as consumption, is a contagious disease usually caused by ''Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can al ...

( A18.4+ ) ***

yaws Yaws is a tropical infection of the skin, bones, and joints caused by the spirochete bacterium ''Treponema pallidum pertenue''. The disease begins with a round, hard swelling of the skin, in diameter. The center may break open and form an ulc ...

( A66.-+ ) *** zoster ( B02.3+ ) * (H03.8*) Involvement of eyelid in other diseases classified elsewhere ** Involvement of eyelid in

impetigo Impetigo is a contagious bacterial infection that involves the superficial skin. The most common presentation is yellowish crusts on the face, arms, or legs. Less commonly there may be large blisters which affect the groin or armpits. The les ...

( L01.0+ ) * (H04.0) Dacryoadenitis * (H04.2) Epiphora * (H06.2*) Dysthyroid

exophthalmos Exophthalmos (also called exophthalmus, exophthalmia, proptosis, or exorbitism) is a bulging of the eye anteriorly out of the orbit. Exophthalmos can be either bilateral (as is often seen in Graves' disease) or unilateral (as is often seen in ...

it is shown that if your eye comes out that it will shrink because the optic fluids drain out

H10-H13 Disorders of conjunctiva

* (H10.0)

Conjunctivitis Conjunctivitis, also known as pink eye or Madras eye, is inflammation of the conjunctiva, the thin, clear layer that covers the white surface of the eye and the inner eyelid. It makes the eye appear pink or reddish. Pain, burning, scratchiness ...

–

inflammation Inflammation (from ) is part of the biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants. The five cardinal signs are heat, pain, redness, swelling, and loss of function (Latin ''calor'', '' ...

of the

conjunctiva In the anatomy of the eye, the conjunctiva (: conjunctivae) is a thin mucous membrane that lines the inside of the eyelids and covers the sclera (the white of the eye). It is composed of non-keratinized, stratified squamous epithelium with gobl ...

commonly due to an

infection An infection is the invasion of tissue (biology), tissues by pathogens, their multiplication, and the reaction of host (biology), host tissues to the infectious agent and the toxins they produce. An infectious disease, also known as a transmis ...

or an

allergic reaction Allergies, also known as allergic diseases, are various conditions caused by hypersensitivity of the immune system to typically harmless substances in the environment. These diseases include Allergic rhinitis, hay fever, Food allergy, food al ...

* (H11.129) Conjunctival concretion - development of hard deposits under the eyelid

H15-H22 Disorders of sclera, cornea, iris and ciliary body

* (H15.0) Scleritis — a painful inflammation of the

sclera The sclera, also known as the white of the eye or, in older literature, as the tunica albuginea oculi, is the opaque, fibrous, protective outer layer of the eye containing mainly collagen and some crucial elastic fiber. In the development of t ...

* (H16) Keratitis — inflammation of the

cornea The cornea is the transparency (optics), transparent front part of the eyeball which covers the Iris (anatomy), iris, pupil, and Anterior chamber of eyeball, anterior chamber. Along with the anterior chamber and Lens (anatomy), lens, the cornea ...

* (H16.0)

Corneal ulcer Corneal ulcer, often resulting from keratitis is an inflammatory or, more seriously, infective condition of the cornea involving disruption of its epithelial layer with involvement of the corneal stroma. It is a common condition in humans part ...

Corneal abrasion Corneal abrasion is a scratch to the surface of the cornea of the eye. Symptoms include pain, redness, light sensitivity, and a feeling like a foreign body is in the eye. Most people recover completely within three days. Most cases are due to m ...

— loss of the surface epithelial layer of the eye's cornea * (H16.1) Snow blindness / Arc eye — a painful condition caused by exposure of unprotected eyes to bright light * (H16.1) Thygeson's superficial punctate keratopathy * (H16.4)

Corneal neovascularization Corneal neovascularization (CNV) is the in-growth of new blood vessels from the pericorneal plexus into avascular Cornea, corneal tissue as a result of oxygen deprivation. Maintaining avascularity of the corneal stroma is an important aspect of he ...

* (H18.5) Fuchs' dystrophy — cloudy morning vision * (H18.6)

Keratoconus Keratoconus is an eye disorder in which the cornea, the transparent front part of the eye, gradually thins and bulges outward into a cone shape. This causes distorted vision, including blurry vision, double vision, increased nearsightedness, ...

— degenerative disease: the cornea thins and changes shape to be more like a cone than a parabole * (H19.3) Keratoconjunctivitis sicca — dry eyes * (H20.0) Iritis — inflammation of the iris * (H20.0, H44.1)

Uveitis Uveitis () is inflammation of the uvea, the pigmented layer of the eye between the inner retina and the outer fibrous layer composed of the sclera and cornea. The uvea consists of the middle layer of pigmented vascular structures of the eye and ...

— inflammatory process involving the interior of the eye;

Sympathetic ophthalmia Sympathetic ophthalmia (SO), also called spared eye injury, is a diffuse granulomatous inflammation of the uveal layer of both eyes following trauma to one eye. It can leave the affected person completely blind. Symptoms may develop from days to s ...

is a subset.

H25-H28 Disorders of lens

* (H25)

Cataract A cataract is a cloudy area in the lens (anatomy), lens of the eye that leads to a visual impairment, decrease in vision of the eye. Cataracts often develop slowly and can affect one or both eyes. Symptoms may include faded colours, blurry or ...

— the

lens A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (''elements'') ...

becomes opaque * (H26)

Myopia Myopia, also known as near-sightedness and short-sightedness, is an eye condition where light from distant objects focuses in front of, instead of on, the retina. As a result, distant objects appear blurry, while close objects appear normal. ...

- close object appears clearly, but far ones do not * (H27)

Hypermetropia Far-sightedness, also known as long-sightedness, hypermetropia, and hyperopia, is a condition of the eye where distant objects are seen clearly but near objects appear blurred. This blur is due to incoming light being focused behind, instead o ...

- Nearby objects appears blurry * (H28)

Presbyopia Presbyopia is a physiological insufficiency of optical Accommodation (vertebrate eye), accommodation associated with the aging of the human eye, eye; it results in progressively worsening ability to focus clearly on close objects. Also known as ...

- inability to focus on nearby objects

H30-H36 Disorders of choroid and retina

H30 Chorioretinal inflammation

(H30) Chorioretinal

* (H30.0) Focal chorioretinal

** Focal: *** chorioretinitis ***

choroiditis Chorioretinitis is an inflammation of the choroid (thin pigmented vascular coat of the eye) and retina of the eye. It is a form of posterior uveitis. Inflammation of these layers can lead to vision-threatening complications. If only the choroid is ...

*** retinitis *** retinochoroiditis * (H30.1) Disseminated chorioretinal

** Disseminated: *** chorioretinitis *** choroiditis *** retinitis *** retinochoroiditis ::*Excludes: exudative

retinopathy Retinopathy is any damage to the retina of the eyes, which may cause vision impairment. Retinopathy often refers to retinal vascular disease, or damage to the retina caused by abnormal blood flow. Age-related macular degeneration is technically in ...

(H35.0) * (H30.2) Posterior cyclitis ** Pars planitis * (H30.8) Other chorioretinal

s ** Harada's disease * (H30.9) Chorioretinal

, unspecified ** Chorioretinitis ** Choroiditis ** Retinitis ** Retinochoroiditis

H31 Other disorders of choroid

(H31) Other disorders of

choroid The choroid, also known as the choroidea or choroid coat, is a part of the uvea, the vascular layer of the eye. It contains connective tissues, and lies between the retina and the sclera. The human choroid is thickest at the far extreme rear o ...

* (H31.0) Chorioretinal scars ** Macula scars of posterior pole (post inflammatory) (post- traumatic) ** Solar retinopathy * (H31.1) Choroidal degeneration **

Atrophy Atrophy is the partial or complete wasting away of a part of the body. Causes of atrophy include mutations (which can destroy the gene to build up the organ), malnutrition, poor nourishment, poor circulatory system, circulation, loss of hormone, ...

** Sclerosis *** Excludes: angioid streaks (H35.3) * (H31.2) Hereditary choroidal dystrophy ** Choroideremia ** Dystrophy, choroidal (central areolar) (generalized) (peripapillary) ** Gyrate atrophy,

*** Excludes: ornithinaemia ( E72.4 ) * (H31.3) Choroidal haemorrhage and rupture ** Choroidal haemorrhage: *** NOS ( Not Otherwise Specified) *** expulsive * (H31.4) Choroidal detachment * (H31.8) Other specified disorders of

* (H31.9) Disorder of

, unspecified

H32 Chorioretinal disorders in diseases classified elsewhere

(H32) Chorioretinal disorders in diseases classified elsewhere * (H32.0) Chorioretinal

in infectious and parasitic diseases classified elsewhere ** Chorioretinitis: *** syphilitic, late ( A52.7+ ) *** toxoplasma ( B58.0+ ) ***

( A18.5+ ) * (H32.8) Other chorioretinal disorders in diseases classified elsewhere

H33 Retinal detachments and breaks

* (H33)

Retinal detachment Retinal detachment is a condition where the retina pulls away from the tissue underneath it. It may start in a small area, but without quick treatment, it can spread across the entire retina, leading to serious vision loss and possibly blindness. ...

with retinal break ** Rhegmatogenous retinal detachment * (H33.1) Retinoschisis and retinal cysts — the retina separates into several layers and may detach ** Cyst of ora serrata ** Parasitic cyst of retina NOS ** Pseudocyst of retina *** Excludes:

congenital A birth defect is an abnormal condition that is present at childbirth, birth, regardless of its cause. Birth defects may result in disability, disabilities that may be physical disability, physical, intellectual disability, intellectual, or dev ...

retinoschisis (Q14.1) **** microcystoid degeneration of retina (H35.4) *(H33.2) Serous retinal detachment **Retinal detachment: ***NOS ***without retinal break ****Excludes: central serous chorioretinopathy (H35.7) *(H33.3) Retinal breaks without detachment ** Horseshoe tear of

retina The retina (; or retinas) is the innermost, photosensitivity, light-sensitive layer of tissue (biology), tissue of the eye of most vertebrates and some Mollusca, molluscs. The optics of the eye create a focus (optics), focused two-dimensional ...

, without detachment ** Round hole of retina, without detachment ** Operculum ** Retinal break NOS *** Excludes: chorioretinal scars after surgery for detachment (H59.8) *** peripheral retinal degeneration without break (H35.4) *(H33.4) Traction detachment of retina ** Proliferative vitreo-retinopathy with retinal detachment *(H33.5) Other retinal detachments

H34 Retinal vascular occlusions

A retinal vessel occlusion is a blockage in the blood vessel at the back of your eye that can result in sight loss.

H35 Other retinal disorders

* (H35.0) Hypertensive retinopathy — burst blood vessels, due to long-term high blood pressure ** (H35.0/E10-E14)

Diabetic retinopathy Diabetic retinopathy (also known as diabetic eye disease) is a medical condition in which damage occurs to the retina due to diabetes. It is a leading cause of blindness in developed countries and one of the lead causes of sight loss in the wor ...

— damage to the retina caused by complications of diabetes mellitus, which could eventually lead to blindness * (H35.0-H35.2)

Retinopathy Retinopathy is any damage to the retina of the eyes, which may cause vision impairment. Retinopathy often refers to retinal vascular disease, or damage to the retina caused by abnormal blood flow. Age-related macular degeneration is technically in ...

— general term referring to non-inflammatory damage to the retina * (H35.1) Retinopathy of prematurity — scarring and retinal detachment in premature babies * (H35.3)

Age-related macular degeneration 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. Early on there are often no symptoms. Some people experien ...

— the photosensitive cells in the macula malfunction and over time cease to work * (H35.3)

Macular degeneration Macular degeneration, also known as age-related macular degeneration (AMD or ARMD), is a medical condition which may result in blurred vision, blurred or vision loss, no vision in the center of the visual field. Early on there are often no sym ...

— loss of central vision, due to macular degeneration ** Bull's Eye Maculopathy * (H35.3) Epiretinal membrane — a transparent layer forms and tightens over the retina * (H35.4)

Peripheral A peripheral device, or simply peripheral, is an auxiliary hardware device that a computer uses to transfer information externally. A peripheral is a hardware component that is accessible to and controlled by a computer but is not a core compo ...

retinal Retinal (also known as retinaldehyde) is a polyene chromophore. Retinal, bound to proteins called opsins, is the chemical basis of visual phototransduction, the light-detection stage of visual perception (vision). Some microorganisms use ret ...

degeneration * (H35.5) Hereditary

dystrophy * (H35.5)

Retinitis pigmentosa Retinitis pigmentosa (RP) is a member of a group of genetic disorders called inherited retinal dystrophy (IRD) that cause loss of vision. Symptoms include trouble seeing at night and decreasing peripheral vision (side and upper or lower visua ...

— genetic disorder; tunnel vision preceded by night-blindness * (H35.6) Retinal haemorrhage * (H35.7) Separation of retinal layers ** Central serous retinopathy **

: Detachment of retinal pigment epithelium * (H35.8) Other specified retinal disorders * (H35.81) Macular edema — distorted central vision, due to a swollen macula * (H35.9) Retinal disorder, unspecified

H36 Retinal disorders in diseases classified elsewhere

* (H36.0)

H40-H42 Glaucoma

** (H40.1) Primary open-angle glaucoma ** (H40.2) Primary angle-closure glaucoma ** (H40.3) Primary Normal tension glaucoma

H43-H45 Disorders of vitreous body and globe

H43 Disorders of vitreous body

* (H43.0) Vitreous

prolapse In medicine, prolapse is a condition in which organ (anatomy), organs fall down or slip out of place. It is used for organs protruding through the vagina, rectum, or for the misalignment of the valves of the heart. A spinal disc herniation is al ...

** Excludes: vitreous syndrome following

cataract surgery Cataract surgery, also called lens replacement surgery, is the removal of the natural lens (anatomy), lens of the human eye, eye that has developed a cataract, an opaque or cloudy area. The eye's natural lens is usually replaced with an artific ...

(H59.0) * (H43.1) Vitreous haemorrhage * (H43.2) Crystalline deposits in vitreous body * (H43.3) Other vitreous opacities ** Vitreous membranes and strands * (H43.8) Other disorders of vitreous body ** Vitreous: *** degeneration *** detachment *** Excludes: proliferative vitreo-retinopathy with

retinal detachment Retinal detachment is a condition where the retina pulls away from the tissue underneath it. It may start in a small area, but without quick treatment, it can spread across the entire retina, leading to serious vision loss and possibly blindness. ...

(H33.4) * (H43.9) Disorder of vitreous body, unspecified

H44 Disorders of globe

Includes: disorders affecting multiple structures of eye * (H44.0) Purulent endophthalmitis ** Panophthalmitis ** Vitreous abscess * (H44.1) Other endophthalmitis **

Parasitic Parasitism is a close relationship between species, where one organism, the parasite, lives (at least some of the time) on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The ent ...

endophthalmitis NOS ** Sympathetic uveitis * (H44.2) Degenerative myopia * (H44.3) Other degenerative disorders of

globe A globe is a spherical Earth, spherical Model#Physical model, model of Earth, of some other astronomical object, celestial body, or of the celestial sphere. Globes serve purposes similar to maps, but, unlike maps, they do not distort the surface ...

** Chalcosis ** Siderosis of eye * (H44.4) Hypotony of eye * (H44.5) Degenerated conditions of globe ** Absolute glaucoma **

of globe ** Phthisis bulbi * (H44.6) Retained (old) intraocular

foreign body A foreign body (FB) is any object originating outside the body of an organism. In machinery, it can mean any unwanted intruding object. Most references to foreign bodies involve propulsion through natural orifices into hollow organs. Foreign b ...

magnetic Magnetism is the class of physical attributes that occur through a magnetic field, which allows objects to attract or repel each other. Because both electric currents and magnetic moments of elementary particles give rise to a magnetic field, m ...

** Retained (old) magnetic foreign body (in): ***

anterior chamber The anterior chamber ( AC) is the aqueous humor-filled space inside the eye between the iris and the cornea's innermost surface, the endothelium. Hyphema, anterior uveitis and glaucoma are three main pathologies in this area. In hyphema, ...

***

ciliary body 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. The aqueous humor is produced in the non-pigmented portion of the ciliary ...

*** iris ***

*** posterior wall of globe ***

vitreous body The vitreous body (''vitreous'' meaning "glass-like"; , ) is the clear gel that fills the space between the Lens (vision), lens and the retina of the eye, eyeball (the vitreous chamber) in humans and other vertebrates. It is often referred to as ...

* (H44.7) Retained (old) intraocular foreign body, nonmagnetic ** Retained (nonmagnetic)(old) foreign body (in): *** anterior chamber *** ciliary body *** iris *** lens *** posterior wall of globe *** vitreous body * (H44.8) Other disorders of globe ** Haemophthalmos ** Luxation of globe * (H44.9) Disorder of globe, unspecified

H45 Disorders of vitreous body and globe in diseases classified elsewhere

* (H45.0) Vitreous haemorrhage in diseases classified elsewhere * (H45.1) Endophthalmitis in diseases classified elsewhere ** Endophthalmitis in: *** cysticercosis ***

*** toxocariasis *(H45.8) Other disorders of

and globe in diseases classified elsewhere

H46-H48 Disorders of optic nerve and visual pathways

* (H47.2) Leber's hereditary optic neuropathy — genetic disorder; loss of central vision,. * (H47.3) Optic disc drusen — globules progressively calcify in the optic disc, compressing the vascularization and optic nerve fibers

H49-H52 Disorders of ocular muscles, binocular movement, accommodation and refraction

* (H49-H50)

Strabismus Strabismus is an eye disorder in which the eyes do not properly align with each other when looking at an object. The eye that is pointed at an object can alternate. The condition may be present occasionally or constantly. If present during a ...

(Crossed eye/Wandering eye/Walleye) — the eyes do not point in the same direction ** (H49.3-4) Ophthalmoparesis — the partial or total paralysis of the eye muscles ** (H49.4) Progressive external ophthalmoplegia — weakness of the external eye muscles ** (H50.0, H50.3)

Esotropia Esotropia () is a form of strabismus in which one or both eyes turn inward. The condition can be constantly present, or occur intermittently, and can give the affected individual a "cross-eyed" appearance. It is the opposite of exotropia and us ...

— the tendency for eyes to become cross-eyed ** (H50.1, H50.3) Exotropia — the tendency for eyes to look outward * H52 Disorders of refraction and accommodation ** (H52.0)

(Farsightedness) — the inability to focus on near objects (and in extreme cases, any objects) ** (H52.1)

(Nearsightedness) — distant objects appear blurred ** (H52.2)

Astigmatism Astigmatism is a type of refractive error due to rotational asymmetry in the eye's refractive power. The lens and cornea of an eye without astigmatism are nearly spherical, with only a single radius of curvature, and any refractive errors ...

— the cornea or the lens of the eye is not perfectly spherical, resulting in different focal points in different planes ** (H52.3)

Anisometropia Anisometropia is a condition in which a person's eyes have substantially differing refractive power. Generally, a difference in power of one diopter (1D) is the threshold for diagnosis of the condition. Patients may have up to 3 diopters of anis ...

— the lenses of the two eyes have different focal lengths ** (H52.4)

— a condition that occurs with growing age and results in the inability to focus on close objects ** (H52.5) Disorders of accommodation *** Internal ophthalmoplegia

H53-H54.9 Visual disturbances and blindness

* (H53.0)

Amblyopia Amblyopia, also called lazy eye, is a disorder of sight in which the brain fails to fully process input from one eye and over time favors the other eye. It results in decreased vision in an eye that typically appears normal in other aspects. Amb ...

(lazy eye) — poor or blurry vision due to either no transmission or poor transmission of the visual image to the brain * (H53.0) Leber's congenital amaurosis — genetic disorder; appears at birth, characterised by sluggish or no pupillary responses * (H53.1, H53.4)

Scotoma A scotoma 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. Every normal mamm ...

(blind spot) — an area impairment of vision surrounded by a field of relatively well-preserved vision. See also Anopsia. * (H53.5)

Color blindness Color blindness, color vision deficiency (CVD) or color deficiency is the decreased ability to color vision, see color or differences in color. The severity of color blindness ranges from mostly unnoticeable to full absence of color percept ...

— the inability to perceive differences between some or all colors that other people can distinguish ** (H53.5)

Achromatopsia Achromatopsia, also known as rod monochromacy, is a medical syndrome that exhibits symptoms relating to five conditions, most notably monochromacy. Historically, the name referred to monochromacy in general, but now typically refers only to an aut ...

/ Maskun — a low cone count or lack of function in cone cells * (H53.6) Nyctalopia (Night blindness) — a condition making it difficult or impossible to see in the dark * (H54)

Blindness Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception. In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficul ...

— the brain does not receive optical information, through various causes ** (H54/B73)

River blindness Onchocerciasis, also known as river blindness, is a disease caused by infection with the parasitic worm ''Onchocerca volvulus''. Symptoms include severe itching, bumps under the skin, and blindness. It is the second-most common cause of blindne ...

— blindness caused by long-term infection by a parasitic worm (rare in western societies) ** (H54.9) Micropthalmia/ coloboma — a disconnection between the

optic nerve In neuroanatomy, the optic nerve, also known as the second cranial nerve, cranial nerve II, or simply CN II, is a paired cranial nerve that transmits visual system, visual information from the retina to the brain. In humans, the optic nerve i ...

and the

brain The brain is an organ (biology), organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It consists of nervous tissue and is typically located in the head (cephalization), usually near organs for ...

and/or

spinal cord The spinal cord is a long, thin, tubular structure made up of nervous tissue that extends from the medulla oblongata in the lower brainstem to the lumbar region of the vertebral column (backbone) of vertebrate animals. The center of the spinal c ...

H55-H59 Other disorders of eye and adnexa

* (H57.9) Red eye — conjunctiva appears red typically due to illness or injury * (H58.0) Argyll Robertson pupil — small, unequal, irregularly shaped pupils

Other codes

The following are not classified as diseases of the eye and adnexa (H00-H59) by the

World Health Organization The World Health Organization (WHO) is a list of specialized agencies of the United Nations, specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Gen ...

: * (B36.1) Keratomycosis — fungal infection of the cornea * (E50.6-E50.7)

Xerophthalmia Xerophthalmia (from Ancient Greek () meaning "dry" and () meaning "eye") is a medical condition in which the eye fails to produce tears. It may be caused by vitamin A deficiency, which is sometimes used to describe that condition, although t ...

— dry eyes, caused by vitamin A deficiency * (Q13.1)

Aniridia Aniridia is a condition characterized by the absence or near absence of the iris, the colored, muscular ring in the eye that controls the size of the pupil and regulates the amount of light entering the eye. This absence results in a primarily b ...

— a rare congenital eye condition leading to underdevelopment or even absence of the iris of the eye

Notes

:''Please see the'' ''References'' ''section below for the complete listing of information.''

References

EyeWiki: The Eye Encyclopedia written by Eye Physicians & Surgeons (American Academy of Ophthalmology)

International Statistical Classification of Diseases (WHO ICD-10) — Diseases of the eye and adnexa (ICD-10 codes H00-H59)

EyeDiseases: Most Common Eye Diseases Explained With Symptoms and Cure
{{Authority control

Eye diseases This is a partial list of human eye diseases and disorders. The World Health Organization (WHO) publishes a classification of known diseases and injuries, the International Statistical Classification of Diseases and Related Health Problems, or ...

Eye diseases