Optometry: Accommodation and Refraction
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Questions and Answers

What are the possible causes of paresis of accommodation if there is no unknown hyperopia or presbyopia?

Subluxation of the lens, direct trauma to the eye, encephalitis, cerebral tumor, syphilis, ocular inflammation, pregnant women, botulism, and anti-tuberculosis drug.

What is the effect of a spasm of accommodation on the amplitude of accommodation?

Decreased amplitude of accommodation.

Which substance can cause paralysis of the parasympathetic system, leading to a spasm of accommodation?

Morphine and alcohol.

What is the age group most commonly affected by spasm of accommodation?

<p>Children and school students.</p> Signup and view all the answers

What is the relationship between clostridium botulinum and spasm of accommodation?

<p>Clostridium botulinum can cause botulism, which can lead to spasm of accommodation, as well as other symptoms such as bilateral pupillary dilatation, dry mouth, and respiratory problems.</p> Signup and view all the answers

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