Nystagmus - Revision history

Spenceemmett: /* Background */

2019-09-18T14:22:27Z

Background

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	==Background==		==Background==
	*Nystagmus = involuntary eye movement		*Nystagmus = involuntary eye movement
	*The semicircular canals of the vestibules and the extraocular muscles of the eye function together physiologically to help control gaze ~~locked~~ when the head is in motion		*The semicircular canals of the vestibules and the extraocular muscles of the eye function together physiologically to help control gaze when the head is in motion
	*Nystagmus is an aberration in this stabilization of the ocular muscles when in motion		*Nystagmus is an aberration in this stabilization of the ocular muscles when the head is in motion

	==Clinical Features==		==Clinical Features==

2019-09-06T00:54:18Z

Congenital Nystagmus

← Older revision		Revision as of 00:54, 6 September 2019
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	*Optic nerve hypoplasia		*Optic nerve hypoplasia
	*Macular disease		*Macular disease
	*[[Eponyms (M-P)\|Noonan syndrome]]		*[[Eponyms (M-P)#Noonan's syndrome\|Noonan syndrome]]

	===Acquired Nystagmus===		===Acquired Nystagmus===

2019-09-06T00:32:25Z

Acquired Nystagmus

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	*Tox causes:		*Tox causes:
	**[[Alcohol intoxication]], [[benzodiazepines]], [[barbiturates]], [[GHB]]		**[[Alcohol intoxication]], [[benzodiazepines]], [[barbiturates]], [[GHB]]
	*[[Ketamine]], [[Phencyclidine]]		**[[Ketamine]], [[Phencyclidine]]
	*[[Amphetamines]], [[Ecstasy (MDMA) toxicity\|MDMA]]		**[[Amphetamines]], [[Ecstasy (MDMA) toxicity\|MDMA]]
	*[[Marijuana]]		**[[Marijuana]]
	*[[Lithium]]		**[[Lithium]]
	*[[Phenytoin]], [[fosphenytoin]], [[carbamazepine]], [[oxcarbazepine]], [[lacosamide]], [[gabapentin]]		**[[Phenytoin]], [[fosphenytoin]], [[carbamazepine]], [[oxcarbazepine]], [[lacosamide]], [[gabapentin]]
	*[[Salicylates]], [[NSAID toxicity]]		**[[Salicylates]], [[NSAID toxicity]]

	==Evaluation==		==Evaluation==

2019-09-06T00:07:22Z

Congenital Nystagmus

2018-08-12T15:55:18Z

Acquired Nystagmus

← Older revision		Revision as of 15:55, 12 August 2018
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	**[[Alcohol intoxication]], [[benzodiazepines]], [[barbiturates]], [[GHB]]		**[[Alcohol intoxication]], [[benzodiazepines]], [[barbiturates]], [[GHB]]
	*[[Ketamine]], [[Phencyclidine]]		*[[Ketamine]], [[Phencyclidine]]
	*[[Amphetamines]], [[~~MDMA\|~~Ecstasy (MDMA) toxicity]]		*[[Amphetamines]], [[Ecstasy (MDMA) toxicity\|MDMA]]
	*[[Marijuana]]		*[[Marijuana]]
	*[[Lithium]]		*[[Lithium]]

2018-08-12T15:54:36Z

Acquired Nystagmus

← Older revision		Revision as of 15:54, 12 August 2018
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	**[[Alcohol intoxication]], [[benzodiazepines]], [[barbiturates]], [[GHB]]		**[[Alcohol intoxication]], [[benzodiazepines]], [[barbiturates]], [[GHB]]
	*[[Ketamine]], [[Phencyclidine]]		*[[Ketamine]], [[Phencyclidine]]
	*[[Amphetamines]], [[MDMA;Ecstasy (MDMA) toxicity]]		*[[Amphetamines]], [[MDMA\|Ecstasy (MDMA) toxicity]]
	*[[Marijuana]]		*[[Marijuana]]
	*[[Lithium]]		*[[Lithium]]

2018-08-12T15:54:11Z

Acquired Nystagmus

← Older revision		Revision as of 15:54, 12 August 2018
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	**[[Alcohol intoxication]], [[benzodiazepines]], [[barbiturates]], [[GHB]]		**[[Alcohol intoxication]], [[benzodiazepines]], [[barbiturates]], [[GHB]]
	*[[Ketamine]], [[Phencyclidine]]		*[[Ketamine]], [[Phencyclidine]]
	*[[Amphetamines]], [[MDMA]]		*[[Amphetamines]], [[MDMA;Ecstasy (MDMA) toxicity]]
	*[[Marijuana]]		*[[Marijuana]]
	*[[Lithium]]		*[[Lithium]]

2018-08-12T15:53:16Z

Acquired Nystagmus

← Older revision		Revision as of 15:53, 12 August 2018
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	*[[Meniere's disease]], [[BPPV]], [[labyrinthitis]], [[Vestibular Neuritis]]		*[[Meniere's disease]], [[BPPV]], [[labyrinthitis]], [[Vestibular Neuritis]]
	*[[Multiple sclerosis]]		*[[Multiple sclerosis]]
	*[[~~Wernicke–Korsakoff~~ syndrome]], [[thiamine deficiency]]		*[[Wernicke-Korsakoff syndrome]], [[thiamine deficiency]]
	*Tox causes:		*Tox causes:
	**[[Alcohol intoxication]], [[benzodiazepines]], [[barbiturates]], [[GHB]]		**[[Alcohol intoxication]], [[benzodiazepines]], [[barbiturates]], [[GHB]]

2017-02-27T00:29:23Z

← Older revision		Revision as of 00:29, 27 February 2017
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	\|-		\|-
	\| Cerebellar signs\|\|No cerebellar signs		\| Cerebellar signs\|\|No cerebellar signs
	\|
	\|}		\|}
	===Optokinetic Drum Test===		===Optokinetic Drum Test===

2017-02-27T00:28:31Z

← Older revision		Revision as of 00:28, 27 February 2017
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	\|		\|
	\|}		\|}
			===Optokinetic Drum Test===
			*Optokinetic reflex develops ~6 months of age
			*Slow pursuit of eyes towards direction of vertical bar movement with quick saccade towards the opposite side to find the next bar to fixate on
			*Abnormal in congenital nystagmus
			*In parietal or parietal-occipital lesions, optokinetic nystagmus is impaired when the drum is rotated towards side of lesion
			**See [https://www.youtube.com/watch?v=UJVFFqZJKGo OKN drum to the right]
			**See [https://www.youtube.com/watch?v=rKm04X-gd2I&list=PLhVpkuPiEu3btjvIlCckXow7PNf5WHdsN OKN drum to the left]
	==="H in space" Test===		==="H in space" Test===
	*Trace H in space		*Trace H in space