This is a partial list of

human eye The human eye is a sensory organ, part of the sensory nervous system, that reacts to visible light and allows humans to use visual information for various purposes including seeing things, keeping balance, and maintaining circadian rhythm. ...

diseases and disorders. The

World Health Organization The World Health Organization (WHO) is a specialized agency of the United Nations responsible for international public health. The WHO Constitution states its main objective as "the attainment by all peoples of the highest possible level o ...

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 diagnostic tool for epidemiology, health management and clinical purposes. The ICD is maintained by the World Health Organization (WHO), which is the directing and coordinating ...

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

H00-H06 Disorders of eyelid, lacrimal system and orbit

* (H02.1) Ectropion * (H02.2)

Lagophthalmos Lagophthalmos is the inability to close the eyelids completely. Cline D; Hofstetter HW; Griffin JR. ''Dictionary of Visual Science''. 4th ed. Butterworth-Heinemann, Boston 1997. Blinking covers the eye with a thin layer of tear fluid, thereby p ...

* (H02.3)

Blepharochalasis 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 t ...

* (H02.4) Ptosis * (H02.5) Stye, an acne type infection of the sebaceous glands on or near the eyelid. * (H02.6) Xanthelasma of eyelid * (H03.0*) Parasitic infestation of eyelid in diseases classified elsewhere **

Dermatitis Dermatitis is inflammation of the skin, 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. The area of skin involved c ...

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 eyela ...

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

leishmaniasis Leishmaniasis is a wide array of clinical manifestations caused by parasites of the trypanosome genus '' Leishmania''. It is generally spread through the bite of phlebotomine sandflies, ''Phlebotomus'' and ''Lutzomyia'', and occurs most freq ...

( B55.-+ ) *** loiasis ( 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 blindn ...

( B73+ ) ***

phthiriasis Pediculosis pubis (also known as "crabs" and "pubic lice") is an infestation by the pubic louse, ''Pthirus pubis'', a wingless insect which feeds on blood and lays its eggs (nits) on mainly pubic hair. Less commonly, hair near the anus, armpit ...

( B85.3+ ) * (H03.1*) Involvement of eyelid in other infectious diseases classified elsewhere ** Involvement of eyelid in: *** herpesviral ( herpes simplex) infection ( B00.5+ ) ***

leprosy Leprosy, also known as Hansen's disease (HD), is a long-term infection by the bacteria '' Mycobacterium leprae'' or '' Mycobacterium lepromatosis''. Infection can lead to damage of the nerves, respiratory tract, skin, and eyes. This nerve d ...

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

tuberculosis Tuberculosis (TB) is an infectious disease usually caused by '' Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can also affect other parts of the body. Most infections show no symptoms, ...

( 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 ( L01.0+ ) * (H04.0)

Dacryoadenitis Dacryoadenitis is inflammation of the lacrimal glands. Symptoms * Swelling of the outer portion of the upper lid, with possible redness and tenderness * Pain in the area of swelling * Excess tearing or discharge * Swelling of lymph nodes in fro ...

* (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, is inflammation of the outermost layer of the white part of the eye and the inner surface of the eyelid. It makes the eye appear pink or reddish. Pain, burning, scratchiness, or itchiness may occur. Th ...

–

inflammation Inflammation (from la, 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 molec ...

of the

conjunctiva The conjunctiva 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 goblet cells, stratified columnar epithel ...

commonly due to an

infection An infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. An infectious disease, also known as a transmissible disease or communicable di ...

or an

allergic reaction Allergies, also known as allergic diseases, refer a number of conditions caused by the hypersensitivity of the immune system to typically harmless substances in the environment. These diseases include hay fever, food allergies, atopic derm ...

* (H11.129)

Conjunctival concretion Concretion in the palpebral conjunctiva, is called conjunctival concretion, that is a (or a cluster of) small, hard, yellowish-white calcified matter, superficially buried beneath the palpebral conjunctiva. Most of concretions in the eye form in ...

- development of hard deposits under the eyelid

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

* (H15.0)

Scleritis Scleritis is a serious inflammatory disease that affects the white outer coating of the eye, known as the sclera. The disease is often contracted through association with other diseases of the body, such as granulomatosis with polyangiitis or ...

— 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 human eye containing mainly collagen and some crucial elastic fiber. In humans, and so ...

* (H16)

Keratitis Keratitis is a condition in which the eye's cornea, the clear dome on the front surface of the eye, becomes inflamed. The condition is often marked by moderate to intense pain and usually involves any of the following symptoms: pain, impaired e ...

— inflammation of the

cornea The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. Along with the anterior chamber and lens, the cornea refracts light, accounting for approximately two-thirds of the eye's total optical ...

* (H16.0)

Corneal ulcer Corneal ulcer 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 particularly in the tropics and the a ...

/ Corneal abrasion — loss of the surface epithelial layer of the eye's cornea * (H16.1) Snow blindness /

Arc eye 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) ...

— a painful condition caused by exposure of unprotected eyes to bright light * (H16.1)

Thygeson's superficial punctate keratopathy Thygeson's superficial punctate keratopathy (TSPK) is a disease of the eyes. The causes of TSPK are not currently known, but details of the disease were first published in the Journal of the American Medical Association in 1950 by renowned America ...

* (H16.4) Corneal neovascularization * (H18.5) Fuchs' dystrophy — cloudy morning vision * (H18.6)

Keratoconus Keratoconus (KC) is a disorder of the eye that results in progressive thinning of the cornea. This may result in blurry vision, double vision, nearsightedness, irregular astigmatism, and light sensitivity leading to poor quality-of-life. ...

— 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 in ...

— inflammatory process involving the interior of the eye; Sympathetic ophthalmia is a subset.

H25-H28 Disorders of lens

* (H25)

Cataract A cataract is a cloudy area in the lens of the eye that leads to a decrease in vision. Cataracts often develop slowly and can affect one or both eyes. Symptoms may include faded colors, blurry or double vision, halos around light, trouble ...

— the

lens A lens is a transmissive optical device which 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 Near-sightedness, also known as myopia and short-sightedness, is an eye disease where light focuses in front of, instead of on, the retina. As a result, distant objects appear blurry while close objects appear normal. Other symptoms may includ ...

- close object appears clearly , but far ones doesn't * (H27) Hypermetropia - Nearby objects appears blurry * (H28) Presbyopia - 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. If only the choroid is inflamed, not the retina, the condition is termed choroiditis. The ophthalm ...

*** 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 inc ...

(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, and contains connective tissues, and lies between the retina and the sclera. The human choroid is thickest at the far extreme rea ...

* (H31.0) Chorioretinal scars **

Macula The macula (/ˈmakjʊlə/) or macula lutea is an oval-shaped pigmented area in the center of the retina of the human eye and in other animals. The macula in humans has a diameter of around and is subdivided into the umbo, foveola, foveal av ...

scars of

posterior pole In ophthalmology, the posterior pole is the back of the eye, usually referring to the retina between the optic disc and the macula.Cassin, B. and Solomon, S. ''Dictionary of Eye Terminology''. Gainesville, Florida: Triad Publishing Company, 1990. ...

(post inflammatory) (post- traumatic) **

Solar retinopathy Solar may refer to: Astronomy * Of or relating to the Sun ** Solar telescope, a special purpose telescope used to observe the Sun ** A device that utilizes solar energy (e.g. "solar panels") ** Solar calendar, a calendar whose dates indicate t ...

* (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), poor nourishment, poor circulation, loss of hormonal support, loss of nerve supply ...

** Sclerosis *** Excludes: angioid streaks (H35.3) * (H31.2) Hereditary choroidal

dystrophy Dystrophy is the degeneration of tissue, due to disease or malnutrition, most likely due to heredity. Types * Muscular dystrophy ** Duchenne muscular dystrophy ** Becker's muscular dystrophy ** Myotonic dystrophy * Reflex neurovascular d ...

Choroideremia Choroideremia (; CHM) is a rare, X-linked recessive form of hereditary retinal degeneration that affects roughly 1 in 50,000 males. The disease causes a gradual loss of vision, starting with childhood night blindness, followed by peripheral vision ...

** Dystrophy, choroidal (central areolar) (generalized) ( peripapillary) ** Gyrate atrophy,

*** Excludes: ornithinaemia ( E72.4 ) * (H31.3) Choroidal

haemorrhage Bleeding, hemorrhage, haemorrhage or blood loss, is blood escaping from the circulatory system from damaged blood vessels. Bleeding can occur internally, or externally either through a natural opening such as the mouth, nose, ear, urethra, v ...

and rupture ** Choroidal

: *** NOS (

Not Otherwise Specified In medicine, Not Otherwise Specified (NOS) is a subcategory in systems of disease/disorder classification such as ICD-9, ICD-10, or DSM-IV. It is generally used to note the presence of an illness where the symptoms presented were sufficient to ...

) *** expulsive * (H31.4) Choroidal detachment * (H31.8) Other specified disordes 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 Syphilis () is a sexually transmitted infection caused by the bacterium ''Treponema pallidum'' subspecies ''pallidum''. The signs and symptoms of syphilis vary depending in which of the four stages it presents (primary, secondary, latent, and ...

, late ( A52.7+ ) ***

toxoplasma ''Toxoplasma gondii'' () is an obligate intracellular parasitic protozoan (specifically an apicomplexan) that causes toxoplasmosis. Found worldwide, ''T. gondii'' is capable of infecting virtually all warm-blooded animals, but felids, such as ...

( 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 disorder of the eye in which the retina peels away from its underlying layer of support tissue. Initial detachment may be localized, but without rapid treatment the entire retina may detach, leading to vision loss and blin ...

— the

retina The retina (from la, rete "net") is the innermost, light-sensitive layer of tissue of the eye of most vertebrates and some molluscs. The optics of the eye create a focused two-dimensional image of the visual world on the retina, which the ...

detaches from the

, leading to blurred and

distorted vision Distorted may refer to: * Anything subject to distortion * Distorted (band), a progressive deathdoom metal band from Bat-Yam, Israel * ''Distorted'' (EP), an extended play by the band Distorted * ''Distorted'' (film) (2018) * Distorted Music Fest ...

* (H33.1)

Retinoschisis Retinoschisis is an eye disease characterized by the abnormal splitting of the retina's neurosensory layers, usually in the outer plexiform layer. Retinoschisis can be divided into degenerative forms which are very common and almost exclusively ...

— the retina separates into several layers and may detach

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 Hypertensive retinopathy is damage to the retina and retinal circulation due to high blood pressure (i.e. hypertension). Signs and symptoms Most patients with hypertensive retinopathy have no symptoms. However, some may report decreased or blur ...

— 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 mellitus. It is a leading cause of blindness in developed countries. Diabetic retinopathy affects up to 80 perc ...

— 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 inc ...

— 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. Over time, however, som ...

— the photosensitive cells in the

macula The macula (/ˈmakjʊlə/) or macula lutea is an oval-shaped pigmented area in the center of the retina of the human eye and in other animals. The macula in humans has a diameter of around and is subdivided into the umbo, foveola, foveal av ...

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 or no vision in the center of the visual field. Early on there are often no symptoms. Over time, however, so ...

— 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 or peripheral device is an auxiliary device used to put information into and get information out of a computer. The term ''peripheral device'' refers to all hardware components that are attached to a computer and are controlled by the ...

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 reti ...

degeneration * (H35.5)

Hereditary Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic informa ...

* (H35.5)

Retinitis pigmentosa Retinitis pigmentosa (RP) is a genetic disorder of the eyes that causes loss of vision. Symptoms include trouble seeing at night and decreasing peripheral vision (side and upper or lower visual field). As peripheral vision worsens, people may ...

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

Central serous retinopathy Central serous chorioretinopathy (CSC or CSCR), also known as central serous retinopathy (CSR), is an eye disease that causes visual impairment, often temporary, usually in one eye. When the disorder is active it is characterized by leakage of f ...

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

* (H35.9) Retinal disorder, unspecified

H36 Retinal disorders in diseases classified elsewhere

* (H36.0)

H40-H42 Glaucoma

** (H40.1) Primary

open-angle glaucoma Glaucoma is a group of eye diseases that result in damage to the optic nerve (or retina) and cause vision loss. The most common type is open-angle (wide angle, chronic simple) glaucoma, in which the drainage angle for fluid within the eye rem ...

** (H40.2) Primary angle-closure glaucoma ** (H40.3) Primary

Normal tension glaucoma Normal tension glaucoma (NTG) is an eye disease, a neuropathy of the optic nerve, that shows all the characteristics of primary open angle glaucoma except one: the elevated intraocular pressure (IOP) - the classic hallmark of glaucoma - is missing. ...

H43-H45 Disorders of vitreous body and globe

* (H43.9)

Floater Floaters or eye floaters are sometimes visible deposits (e.g., the shadows of tiny structures of protein or other cell debris projected onto the retina) within the eye's vitreous humour ("the vitreous"), which is normally transparent, or betwe ...

s — shadow-like shapes which appear singly or together with several others in the field of vision

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 a vision disorder in which the eyes do not properly align with each other when looking at an object. The eye that is focused on 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 Ophthalmoparesis refers to weakness (-paresis) or paralysis (-plegia) of one or more extraocular muscles which are responsible for eye movements. It is a physical finding in certain neurologic, ophthalmologic, and endocrine disease. Internal ...

— the partial or total paralysis of the eye muscles ** (H49.4) Progressive external ophthaloplegia — weakness of the external eye muscles ** (H50.0, H50.3)

Esotropia Esotropia is a form of strabismus in which one or both eyes turns 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 usual ...

— 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) Hypermetropia (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. This results in distorted or blurred vision at any distance. Other symptoms can include eyestrain, headaches, and trouble driving at n ...

— the cornea or the lens of the eye is not perfectly spherical, resulting in different focal points in different planes ** (H52.3) Anisometropia — the lenses of the two eyes have different focal lengths ** (H52.4) Presbyopia — 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 mam ...

(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 or color vision deficiency (CVD) is the decreased ability to see color or differences in color. It can impair tasks such as selecting ripe fruit, choosing clothing, and reading traffic lights. Color blindness may make some aca ...

— 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 a ...

/ Maskun — a low cone count or lack of function in

cone cells Cone cells, or cones, are photoreceptor cells in the retinas of vertebrate eyes including the human eye. They respond differently to light of different wavelengths, and the combination of their responses is responsible for color vision. Cone ...

* (H53.6)

Nyctalopia Nyctalopia (; ), also called night-blindness, is a condition making it difficult or impossible to see in relatively low light. It is a symptom of several eye diseases. Night blindness may exist from birth, or be caused by injury or malnutrition ( ...

(Nightblindness) — a condition making it difficult or impossible to see in the dark * (H54)

Blindness Visual impairment, also known as vision impairment, is a medical definition primarily measured based on an individual's better eye visual acuity; in the absence of treatment such as correctable eyewear, assistive devices, and medical treatment� ...

— the brain does not receive optical information, through various causes ** (H54/B73) River blindness — 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 information from the retina to the brain. In humans, the optic nerve is derived fro ...

and the

brain A brain is an organ (biology), organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as Visual perception, vision. I ...

and/or

spinal cord The spinal cord is a long, thin, tubular structure made up of nervous tissue, which extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column (backbone). The backbone encloses the central canal of the sp ...

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 Argyll Robertson pupils (AR 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). They are a highly specific sign of neu ...

— small, unequal, irregularly shaped pupils

Other codes

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

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

Xerophthalmia Xerophthalmia (from Ancient Greek "xērós" (ξηρός) meaning "dry" and "ophthalmos" (οφθαλμός) meaning "eye") is a medical condition in which the eye fails to produce tears. It may be caused by vitamin A deficiency, which is som ...

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

Aniridia Aniridia is the absence of the iris, a muscular structure that opens and closes the pupil to allow light into the eye. It is also responsible for eye color. Without it, the central eye appears all black. It can be congenital, in which both ey ...

— 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)
{{Authority control Eye diseases Eye diseases