Link to this page
Medical Dictionary for Regulatory Activities Terminology (MedDRA)
Id | http://purl.bioontology.org/ontology/MEDDRA/20000148
http://purl.bioontology.org/ontology/MEDDRA/20000148
|
---|---|
Preferred Name | Optic nerve disorders (SMQ) |
Definitions |
Optic nerve transmits impulses generated by retinal photoreceptors to the brain. Damage anywhere along the optic nerve or to visual areas of brain can result in loss of vision. No overall definition for optic nerve disorders; SMQ focuses on optic neuropathy, optic neuritis (inflammation), and papilledema (swelling of optic nerve). Causes of optic neuropathy: toxins, including lead, methanol, ethylene glycol, tobacco or arsenic; compromised blood supply; nutritional deficiencies, especially vitamin B12; drugs, including chloramphenicol, isoniazid, ethambutol or digoxin. Loss of vision may be rapid (minutes or hours) or gradual over 2-7 days. One or both eyes can be affected, depending on cause. Vision can range from almost normal to complete blindness. Both eyes usually affected in optic neuropathy due to toxins or nutritional deficiency. Small area of vision loss at center of visual field slowly enlarges and can progress to complete blindness.
|
Type | http://www.w3.org/2002/07/owl#Class |
All Properties
definition | Optic nerve transmits impulses generated by retinal photoreceptors to the brain. Damage anywhere along the optic nerve or to visual areas of brain can result in loss of vision. No overall definition for optic nerve disorders; SMQ focuses on optic neuropathy, optic neuritis (inflammation), and papilledema (swelling of optic nerve). Causes of optic neuropathy: toxins, including lead, methanol, ethylene glycol, tobacco or arsenic; compromised blood supply; nutritional deficiencies, especially vitamin B12; drugs, including chloramphenicol, isoniazid, ethambutol or digoxin. Loss of vision may be rapid (minutes or hours) or gradual over 2-7 days. One or both eyes can be affected, depending on cause. Vision can range from almost normal to complete blindness. Both eyes usually affected in optic neuropathy due to toxins or nutritional deficiency. Small area of vision loss at center of visual field slowly enlarges and can progress to complete blindness. |
---|---|
prefLabel | Optic nerve disorders (SMQ)
|
notation | 20000148
|
SMQ STATUS | A
|
SMQ LEVEL | 1
|
Semantic type UMLS property | |
type | |
Scope Statement | NOTE: Depending upon the goal of the search, a specific search may require use of more than one ophthalmological SMQ.
|
tui | T185
|
cui | C2363983
|
Has member |
See more
See less
|
SMQ SOURCE | Merck Manual Online, published by Merck Research Laboratories
|
SMQ ALGO | N
|
Delete | Subject | Author | Type | Created |
---|---|---|---|---|
No notes to display |
- Loading...
Notes
Add NCBO Web Widgets to your site for MEDDRA
Widget type | Widget demonstration |
---|---|
|
Step 2: Follow the Instructions
For more help visit NCBO Widget Wiki |
|
Example 1 (start typing the class name to get its full URI)
Example 2 (get the ID for a class) Example 3 (get the preferred name for a class) Step 2: Follow the Instructions
For more help visit NCBO Widget Wiki |
|
Step 2: Follow the InstructionsCopy the code below and paste it to your HTML page <iframe frameborder="0" src="/widgets/visualization?ontology=MEDDRA&class=http%3A%2F%2Fpurl.bioontology.org%2Fontology%2FMEDDRA%2F10001665&apikey=YOUR_API_KEY"></iframe> For more help visit NCBO Widget Wiki |