Spasm of accommodation (original) (raw)
A spasm of accommodation (also known as a ciliary spasm, an accommodation, or accommodative spasm) is a condition in which the ciliary muscle of the eye remains in a constant state of contraction. Normal accommodation allows the eye to "accommodate" for near-vision. However, in a state of perpetual contraction, the ciliary muscle cannot relax when viewing distant objects. This causes vision to blur when attempting to view objects from a distance. This may cause pseudomyopia or latent hyperopia. Possible clinical findings include:
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| dbo:abstract | A spasm of accommodation (also known as a ciliary spasm, an accommodation, or accommodative spasm) is a condition in which the ciliary muscle of the eye remains in a constant state of contraction. Normal accommodation allows the eye to "accommodate" for near-vision. However, in a state of perpetual contraction, the ciliary muscle cannot relax when viewing distant objects. This causes vision to blur when attempting to view objects from a distance. This may cause pseudomyopia or latent hyperopia. Although antimuscarinic drops (homoatropine 5%) can be applied topically to relax the muscle, this leaves the individual without any accommodation and, depending on refractive error, unable to see well at near distances. Also, excessive pupil dilation may occur as an unwanted side effect. This dilation may pose a problem since a larger pupil is less efficient at focusing light (see pupil, aperture, and optical aberration for more.) Patients who have accommodative spasm may benefit from being given glasses or contacts that account for the problem or by using vision therapy techniques to regain control of the accommodative system. Possible clinical findings include: * Normal Amplitude of accommodation * Normal Near point of convergence * Reduced Negative relative accommodation * Difficulty clearing plus on facility testing (en) |
| dbo:wikiPageExternalLink | https://www.fda.gov/aboutfda/transparency/basics/ucm194904.htm |
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| dbo:wikiPageRevisionID | 1099667532 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Amplitude_of_accommodation dbr:Pseudomyopia dbr:Antimuscarinic dbr:Aperture dbr:Homatropine dbr:Perilla_frutescens dbr:Cycloplegia dbr:Corrective_lenses dbr:Ciliary_muscle dbr:Miosis dbr:Tropicamide dbr:American_Optometric_Association dbr:Cyclopentolate dbr:Muscle_contraction dbr:Pupil dbr:Vision_therapy dbr:Atropine dbr:Accommodation_(eye) dbc:Eye dbr:Refractive_error dbr:Human_eye dbr:Optical_aberration dbr:Negative_relative_accommodation dbr:Nitroglycerin_(drug) dbr:Topical dbr:Near_point_of_convergence dbr:Pupil_dilation |
| dbp:wikiPageUsesTemplate | dbt:Clarify dbt:Reflist dbt:Sic dbt:Cite_quote |
| dcterms:subject | dbc:Eye |
| gold:hypernym | dbr:Condition |
| rdf:type | dbo:Disease |
| rdfs:comment | A spasm of accommodation (also known as a ciliary spasm, an accommodation, or accommodative spasm) is a condition in which the ciliary muscle of the eye remains in a constant state of contraction. Normal accommodation allows the eye to "accommodate" for near-vision. However, in a state of perpetual contraction, the ciliary muscle cannot relax when viewing distant objects. This causes vision to blur when attempting to view objects from a distance. This may cause pseudomyopia or latent hyperopia. Possible clinical findings include: (en) |
| rdfs:label | Spasm of accommodation (en) |
| owl:sameAs | freebase:Spasm of accommodation wikidata:Spasm of accommodation https://global.dbpedia.org/id/4vkNs |
| prov:wasDerivedFrom | wikipedia-en:Spasm_of_accommodation?oldid=1099667532&ns=0 |
| foaf:isPrimaryTopicOf | wikipedia-en:Spasm_of_accommodation |
| is dbo:wikiPageRedirects of | dbr:Accommodation_spasm dbr:Accommodative_spasm |
| is dbo:wikiPageWikiLink of | dbr:Pseudomyopia dbr:Mydriasis dbr:Cyclopentolate dbr:Accommodation_(eye) dbr:Accommodative_excess dbr:Autonomic_drug dbr:Accommodation_spasm dbr:Accommodative_spasm |
| is foaf:primaryTopic of | wikipedia-en:Spasm_of_accommodation |