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Pseudomyopia

Index Pseudomyopia

Pseudomyopia refers to an intermittent and temporary shift in refractive error of the eye towards myopia, in which the focusing of light in front of the retina is due to a transient spasm of the ciliary muscle causing an increase in the refractive power of the eye. [1]

11 relations: Accommodation (eye), Atropine, Ciliary muscle, Cycloplegia, Eye strain, Homatropine, Near-sightedness, Parasympathetic nervous system, Refraction, Refractive error, Uveitis.

Accommodation (eye)

Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies.

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Atropine

Atropine is a medication to treat certain types of nerve agent and pesticide poisonings as well as some types of slow heart rate and to decrease saliva production during surgery.

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Ciliary muscle

The ciliary muscle is a ring of smooth muscleSchachar, Ronald A. (2012). "Anatomy and Physiology." (Chapter 4). in the eye's middle layer (vascular layer) that controls accommodation for viewing objects at varying distances and regulates the flow of aqueous humour into Schlemm's canal. It changes the shape of the lens within the eye, not the size of the pupil which is carried out by the sphincter pupillae muscle and dilator pupillae.

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Cycloplegia

Cycloplegia is paralysis of the ciliary muscle of the eye, resulting in a loss of accommodation.

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Eye strain

Eye strain, also known as asthenopia (from Greek asthen-opia, ἀσθεν-ωπία, "weak-eye-condition"), is an eye condition that manifests through nonspecific symptoms such as fatigue, pain in or around the eyes, blurred vision, headache, and occasional double vision.

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Homatropine

Homatropine (Equipin, Isopto Homatropine) is an anticholinergic medication that is an antagonist at muscarinic acetylcholine receptors and thus the parasympathetic nervous system.

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Near-sightedness

Near-sightedness, also known as short-sightedness and myopia, is a condition of the eye where light focuses in front of, instead of on, the retina.

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Parasympathetic nervous system

The parasympathetic nervous system (PSNS) is one of the two divisions of the autonomic nervous system (a division of the peripheral nervous system (PNS)), the other being the sympathetic nervous system.

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Refraction

Refraction is the change in direction of wave propagation due to a change in its transmission medium.

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Refractive error

Refractive error, also known as refraction error, is a problem with focusing light accurately onto the retina due to the shape of the eye.

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Uveitis

Uveitis is the inflammation of the uvea, the pigmented layer that lies between the inner retina and the outer fibrous layer composed of the sclera and cornea.

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School myopia.

References

[1] https://en.wikipedia.org/wiki/Pseudomyopia

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