49549006: Structure of visual system (body structure)

SNOMED CT Concept\Body structure (body structure)\Anatomical or acquired body structure (body structure)\Anatomical structure\Body system structure\Structure of special senses organ system\The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core

Descriptions:

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Is a	Structure of special senses organ system	true	Inferred relationship	Some
The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Is a	Structure of sensory nervous system (body structure)	false	Inferred relationship	Some
The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	partie de	Entire body as a whole	false	Additional relationship	Some

Inbound Relationships	Type	Active	Source	Characteristic	Refinability	Group
Left homonymous hemianopsia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Quadrantanopia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Homonymous hemianopia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Right homonymous hemianopsia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Complete homonymous hemianopia (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Incomplete homonymous hemianopia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Inattention homonymous hemianopia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Complete bitemporal hemianopia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Incomplete bitemporal hemianopia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Altitudinal hemianopia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Binasal heteronymous quadrantanopia (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Bitemporal heteronymous quadrantanopia (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Bilateral homonymous altitudinal hemianopia (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Quadrantanopia of right eye (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Quadrantanopia of left eye (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Infantile esotropia (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Suppression of visual signal of eye	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Constriction of visual field of right eye (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Constriction of visual field of left eye (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Suppression of visual signal of left eye (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Suppression of visual signal of right eye (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Atypical progressive supranuclear palsy syndrome	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Progressive supranuclear palsy parkinsonism syndrome (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Progressive supranuclear palsy progressive non fluent aphasia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Progressive supranuclear palsy corticobasal syndrome (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Global developmental delay-visual anomalies-progressive cerebellar atrophy-truncal hypotonia syndrome is a rare, genetic, neurological disorder characterized by mild to severe developmental delay and speech impairment, truncal hypotonia, abnormalities of vision (including cortical visual impairment and abnormal visual-evoked potentials), progressive brain atrophy mainly affecting the cerebellum, and shortened or atrophic corpus callosum. Other clinical findings may include increased muscle tone in the extremities, dystonic posturing, hyporeflexia, scoliosis, postnatal microcephaly and variable facial dysmorphism (e.g. deep-set eyes, gingival hyperplasia, short philtrum and retrognathia).	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	3
A rare genetic disease characterized by onset of neurological deterioration in the first two years of life, progressing to severe intellectual disability, profound ataxia, mild dyskinesia, axial hypotonia, camptocormia, and oculomotor apraxia. Some patients also develop nephropathy with features of tubulointerstitial nephritis, hypertension, and a tendency for hyperkalemia.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	3
Generalised visual field constriction	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
A rare autosomal recessive syndromic cerebellar ataxia characterized by the association of early-onset cerebellar ataxia with hearing loss and blindness. Patients may also present demyelinating peripheral motor neuropathy. Cerebral MRI shows alterations of the cerebellar white matter without cerebellar atrophy.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	4
Acquired oculomotor apraxia (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Ophthalmoplegia due to abetalipoproteinemia (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
A rare autosomal recessive cerebellar ataxia characterized by onset of dystonia and other extrapyramidal signs, ataxia, oculomotor apraxia, and progressive sensorimotor polyneuropathy in the first decade of life. Patients present distal muscle weakness and atrophy, decreased vibratory sensation, and areflexia, and usually become wheelchair-bound by the third decade. Variable cognitive impairment may also be seen.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	3
A rare genetic neurological disorder characterized by infantile hypotonia, congenital ophthalmic anomalies (including strabismus, esotropia, nystagmus, and central visual impairment), global developmental delay and intellectual disability, behavioral abnormalities, and movement disorder (such as dystonia, chorea, hyperkinesia, stereotypies). Mild facial dysmorphism and skeletal deformities have also been reported. EEG testing shows marked abnormalities in the absence of overt epileptic seizures.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A rare developmental defect with connective tissue involvement characterized by joint hyperextensibility and multiple dislocations of large joints, severe myopia, and short stature. Other common features include retinal detachment, iris and chorioretinal coloboma, kyphoscoliosis and other spine deformities, pectus carinatum, talipes equinovarus, and progressive hearing loss.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	6
A rare leukodystrophy characterized by a spectrum of progressive neurologic manifestations comprising rapidly progressive early-onset nystagmus, spastic tetraplegia, and visual and hearing impairment, resulting in death in early childhood, as well as later onset of slowly progressive complex spastic ataxia with pyramidal and cerebellar symptoms and loss of developmental milestones. Brain imaging shows diffuse hypomyelination of the subcortical and deep white matter, cerebellar atrophy, and diffuse spinal cord volume loss.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	5
A rare, genetic, syndromic intellectual disability characterized by global developmental delay, early-onset seizures, cerebellar atrophy, osteopenia, nystagmus and dysmorphic facial features, including bitemporal narrowing, prominent forehead, anteverted nares. Dysarthria, dysmetria, ataxic gait, spasticity and dysmorphic features have also been associated.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	4
Centripetal nystagmus (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Directional deficiency of smooth pursuit movements	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Cyclovergence nystagmus (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by the association of severe intellectual disability, strabismus, and anterior maxillary protrusion with vertical maxillary excess, open bite, and prominent crowded teeth. Mild cochlear hearing loss has been reported in addition.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	5
A rare primary bone dysplasia characterized by micromelia with rhizomelic shortening, metaphyseal widening of the long bones, brachydactyly, small scapulae, micrognathia and thoracic insufficiency requiring tracheostomy and ventilation, and severe myopia and sensorineural hearing loss. Further dysmorphic craniofacial features include frontal bossing, proptosis, epicanthal folds, short nose, flat nasal bridge, anteverted nares, midfacial retrusion, and cleft palate.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	5
Intermittent downward gaze deviation (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Dysfunction of visual motion detection (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Frontal type acquired oculomotor apraxia (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Fronto-parietal type acquired oculomotor apraxia (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Ophthalmoplegia due to and following Guillain-Barré syndrome (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Ophthalmoplegia due to neuropathy (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Optic ataxia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Normal visual motion detection	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Sustained downward gaze deviation (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Opsoclonia	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Transient vision loss caused by light (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Ophthalmoplegia due to phytanic acid storage disease (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Retinotopic pursuit defect	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Parietal type acquired oculomotor apraxia (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Dissociative blindness	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
A rare genetic neurological disorder characterized by the association of congenital spastic paraplegia with global developmental delay and intellectual disability, ophthalmologic abnormalities (including nystagmus, reduced visual acuity, or hypermetropia), and obesity. Additional manifestations are brachy plagiocephaly and dysmorphic facial features. Brain imaging may show dilated ventricles, abnormal myelination, and mild generalized atrophy. Homozygous loss-of-function variants of KIDINS220 associated with a fetal lethal phenotype with ventriculomegaly and limb contractures have been reported.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	6
Diplopia due to convergence spasm in the absence of any neurological disease cause.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Visual field defect due to and following intracerebral haemorrhage	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
A rare disorder characterized by recurring, often distressing, visual disturbances that resemble the effects of hallucinogenic drugs. These disturbances, which can include flashes of color, geometric patterns, and afterimages, occur long after the use of hallucinogens has ceased, and can significantly impact daily functioning and quality of life.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	3
Microperimetry (procedure)	Procedure site - Direct (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Acquired progressive esotropia due to high myopia (disorder)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Vision unchanged (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Ophthalmological and optical investigations	Procedure site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A vertical misalignment where one eye tends to move downward, only noticeable when binocular vision is disrupted such as when one eye is covered. The misalignment is the same in all directions of gaze.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A condition where the eyes have a tendency to drift out of alignment, which becomes noticeable only when binocular vision is disrupted. This misalignment is comitant, meaning the degree of deviation remains consistent across all gaze directions.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Vertical heterophoria	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A vertical misalignment where one eye tends to move downward, only noticeable when binocular vision is disrupted such as when one eye is covered.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A vertical misalignment in which one eye tends to move downward, only noticeable when binocular vision is disrupted, such as when one eye is covered. The misalignment varies depending on the direction of gaze.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A vertical misalignment where one eye tends to move upward, only noticeable when binocular vision is disrupted such as when one eye is covered.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A vertical misalignment in which one eye tends to move upward, only noticeable when binocular vision is disrupted, such as when one eye is covered. The misalignment is the same in all directions of gaze.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A type of esophoria where the inward deviation is consistent in all directions of gaze.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A type of exophoria where the outward deviation is consistent in all directions of gaze.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A horizontal misalignment in which one eye moves inward, towards the nose, only noticeable when binocular vision is disrupted, such as when one eye is closed or covered.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A horizontal misalignment in which one eye moves outward, away from the nose, only noticeable when binocular vision is disrupted, such as when one eye is closed or covered.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A type of esophoria where the inward deviation varies depending on the direction of gaze.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
A type of exophoria where the outward deviation varies depending on the direction of gaze.	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Near low vision aid - extra cap for telescope	Procedure site - Indirect (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Provision of headband telescope	Procedure site - Indirect (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Provision of spectacle distance telescope	Procedure site - Indirect (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Provision of integral spectacle distance telescope	Procedure site - Indirect (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Provision of clip-on spectacle distance telescope (procedure)	Procedure site - Indirect (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Provision of spectacle near telescope (procedure)	Procedure site - Indirect (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Provision of headband distance telescope	Procedure site - Indirect (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Provision of spectacle low vision aid - near	Procedure site - Indirect (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Provision of spectacle magnifier	Procedure site - Indirect (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Ishihara color perception test (procedure)	Procedure site - Direct (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Abnormal visual fixation	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Mild constriction of peripheral visual field	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Moderate constriction of peripheral visual field	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Mildly reduced visual acuity (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Poor visual behaviour for age	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Progressive visual field defect (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Progressive decrease in visual acuity	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Severe constriction of peripheral visual field	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Unstable visual fixation	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	2
Visual gaze preference (finding)	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Visual acuity perception of light without projection	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Electro-oculogram examination (procedure)	Procedure site - Direct (attribute)	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1
Visual aura phenomena featuring shimmering, zigzag patterns that resemble the walls of a medieval fortress, hence the name fortification. They can occur with or without a scotoma (a partial loss of vision).	Finding site	True	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	Inferred relationship	Some	1

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Reference Sets

Anatomy structure and entire association reference set (foundation metadata concept)

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Id	Description	Lang	Type	Status	Case?	Module
2884597013	The eye, ocular adnexa, afferent visual pathways, efferent visual pathways, and pupil innervation pathways	en	Definition	Active	Entire term case sensitive (core metadata concept)	SNOMED CT core
495433017	Visual structure	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
1215761010	Visual system structure	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
2638818019	Structure of visual system (body structure)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
2642836010	Structure of visual system	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core