Spasm of accommodation

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. Normally, this contraction bends the lens to allow 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 be caused be pseudomyopia or latent hyperopia.

Although antimuscarinic drops can be applied topically to relax the muscle, excessive pupil dilation may occur as an unwanted side effect. The dilation may pose a problem since it could allow an increased amount of harmful ultraviolet light to enter and damage the eye.

Patients who have accommodative spasm may benefit from being given a small plus prescription or through vision therapy.

Possible clinical findings include:
Normal Amplitude of accommodation and Near point of convergence
Reduced Negative relative accommodation
Difficulty clearing plus on facility testing

ee also

* Miosis


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • spasm of accommodation — spasm of the ciliary muscles, producing excess of accommodation for near objects …   Medical dictionary

  • Accommodation (eye) — Accommodation is the process by which the increases optical power to maintain a clear image (focus) on an object as it draws near the eye. The young human eye can change focus from distance to 7 cm from the eye in 350 milliseconds. This dramatic… …   Wikipedia

  • Spasm — A brief, automatic jerking movement. A muscle spasm can be quite painful, with the muscle clenching tightly. A spasm of the coronary artery can cause angina. Spasms in various types of tissue may be caused by stress, medication, over exercise, or …   Medical dictionary

  • eye, human — ▪ anatomy Introduction  specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit       The eye is protected from mechanical injury… …   Universalium

  • cyclospasm — cy·clo·spasm (siґklo spaz″əm) spasm of accommodation of the eyes …   Medical dictionary

  • Physostigmine — drugbox IUPAC name = [(3aR,8bS) 3,4,8b Trimethyl 2,3a dihydro 1 H pyrrolo [2,3 b] indol 7 yl] N methylcarbamate CAS number = 57 47 6 ATC prefix = S01 ATC suffix = EB05 ATC supplemental = ATC|V03|AB19 PubChem = 5983 DrugBank = APRD00406 C=15 |… …   Wikipedia

  • Parinaud's syndrome — Not to be confused with Parinaud s oculoglandular syndrome. Parinaud s syndrome Classification and external resources ICD 10 G …   Wikipedia

  • Malaoxon — IUPAC name diethyl 2 (dimethoxyphosphorylsulfanyl)butanedioate …   Wikipedia

  • macropsia — Perception of objects as larger than they are. [macro + G. opsis, vision] * * * mac·rop·sia ma kräp sē ə also mac·rop·sy ma .kräp sē n, pl sias also sies a condition of the eye in which objects appear to be unnaturally large compare MICROPSIA * * …   Medical dictionary

  • espasmo de la acomodación — Eng. Spasm of accommodation Trastorno consistente en la contracción violenta del músculo ciliar que produce una acomodación inadecuada. Ciclospasmo. Espasmo del músculo ciliar …   Diccionario de oftalmología

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.