accommodation spasm

調節痙攣

WordNet

1. (physiology) the automatic adjustment in focal length of the natural lens of the eye
2. living quarters provided for public convenience; "overnight accommodations are available"
3. the act of providing something (lodging or seat or food) to meet a need
4. a settlement of differences; "they reached an accommodation with Japan"
5. in the theories of Jean Piaget: the modification of internal representations in order to accommodate a changing knowledge of reality
6. a painful and involuntary muscular contraction (同)cramp, muscle_spasm
7. (pathology) sudden constriction of a hollow organ (as a blood vessel)

PrepTutorEJDIC

1. 〈U〉『宿泊』;《複数形で》(旅館などの)『宿泊設備』 / 〈C〉便宜,助け / 〈U〉(…への)『適応』,順応《+『to』+『名』》 / 〈C〉調停,和解
2. (筋肉などの)けいれん / (感情・活動などの)発作《+『of』+『名』》
3. 鉱泉,温泉 / 温泉場

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/01/27 18:18:38」(JST)

wiki en

[Wiki en表示]

A spasm of accommodation (also known as 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 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 defraction 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 and Near point of convergence
Reduced Negative relative accommodation
Difficulty clearing plus on facility testing

See also

• Miosis

References

UpToDate Contents

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• 1. 成人における視覚障害：屈折障害と老視 visual impairment in adults refractive disorders and presbyopia
• 2. レーザー屈折矯正手術 laser refractive surgery
• 3. 正常な加齢 normal aging
• 4. コンタクトレンズの概要 overview of contact lenses
• 5. 加齢黄斑変性：治療および予防 age related macular degeneration treatment and prevention

English Journal

• Functional spasm of accommodation: Changes on scheimpflug imaging.

• Sukhija J, Dogra MR, Zadeng T, Ram J.
• Oman journal of ophthalmology.Oman J Ophthalmol.2014 Sep;7(3):150-2. doi: 10.4103/0974-620X.142601.
• Spasm of accommodation is a rare condition characterized by a sudden increase in myopia. It can occur in emmetropes, hypermetropes and myopes. All the physiological changes that occur in normal accommodation are exaggerated. Mostly the cause is functional disorder and the condition gradually improve
• PMID 25378883

• Functional convergence spasm.

• Ghosh A1, Padhy SK1, Gupta G1, Goyal MK2.
• Indian journal of psychological medicine.Indian J Psychol Med.2014 Jul;36(3):332-4. doi: 10.4103/0253-7176.135394.
• Convergence spasm (CS) means intermittent episodes of convergence, miosis and accommodation with disconjugate gaze mimicking abducens palsy. The organic causes range from metabolic to host of neurological and ophthalmic diseases that we describe. It was first described as a presentation of psychogen
• PMID 25035565

• Acute adult onset comitant esotropia associated with accommodative spasm.

• Hussaindeen JR1, Mani R, Agarkar S, Ramani KK, Surendran TS.
• Optometry and vision science : official publication of the American Academy of Optometry.Optom Vis Sci.2014 Apr;91(4 Suppl 1):S46-51. doi: 10.1097/OPX.0000000000000182.
• PURPOSE: Acute onset comitant esotropia associated with spasm of accommodation in children and adults is a rare clinical condition. When occurring with pupillary miosis and restricted ocular motility, it is referred to as "spasm of near reflex" (SNR) and may require neurological investigation. The n
• PMID 24584303

Japanese Journal

• 片眼性の調節痙攣が疑われた心因性視覚障害の一例

• 日本視能訓練士協会誌 43(0), 257-262, 2014
• NAID 130004822888

• CLINICAL INVESTIGATION : Serial measurements of accommodation by open-field Hartmann–Shack wavefront aberrometer in eyes with accommodative spasm

• Japanese journal of ophthalmology 56(6), 617-623, 2012-11-01
• NAID 10031126911

• 調節痙攣を伴った不同視弱視の1例

• 日本弱視斜視学会雑誌 34, 109-111, 2007-06-15
• NAID 10026517359

Related Links

• Spasm of accommodation - RightDiagnosis.com

Spasm of accommodation information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. ... Introduction: Spasm of accommodation Description of Spasm of accommodation Spasm ...

• Accomodation spasm - RightDiagnosis.com - Right Diagnosis

Accomodation spasm information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. ... Accomodation spasm: Related Topics These medical condition or symptom topics may be ...

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★リンクテーブル★

リンク元	「調節痙攣」
関連記事	「spasm」「accommodation」

「調節痙攣」

　　[★]

英

accommodative spasm, accommodation spasm

ラ

spasmus accommodationis

「spasm」

　　[★]

• n.

• 攣縮、痙縮、けいれん

関

contracture、convulsion、convulsive、cramp、generalized spasm、muscle spasm、muscular spasm、seizure、spasticity、twitch、twitching

　 　 　

「accommodation」

　　[★]

• n.

• 宿泊設備、予約席
• 好都合なこと、ありがたいこと
• 適応、順応
• (目の水晶体の)(遠近)調節

関

accommodational