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			{{Infobox medical condition
			\| name = Hemeralopia
			\| synonyms = Day blindness, day vision impairment
			\| field = [[Ophthalmology]]
			\| symptoms = Difficulty seeing in bright light
			\| causes = [[Cone cell]] dysfunction, [[cataract]], [[retinal disease]]
			\| diagnosis = [[Eye examination]], [[visual acuity]] test
			\| treatment = [[Sunglasses]], [[tinted lenses]], managing underlying conditions
			\| frequency = Rare
			}}
	'''Hemeralopia''' (also known as '''day blindness''') is a medical condition characterized by an inability to see clearly in bright light. This condition is the opposite of [[nyctalopia]], which is difficulty seeing in low light or at night.		'''Hemeralopia''' (also known as '''day blindness''') is a medical condition characterized by an inability to see clearly in bright light. This condition is the opposite of [[nyctalopia]], which is difficulty seeing in low light or at night.

	== Causes ==		== Causes ==

	Hemeralopia can be caused by a number of different conditions, including:		Hemeralopia can be caused by a number of different conditions, including:

	* [[Albinism]]: A genetic condition that affects the production of melanin, the pigment that colors skin, hair, and eyes. People with albinism often have vision problems, including hemeralopia.		* [[Albinism]]: A genetic condition that affects the production of melanin, the pigment that colors skin, hair, and eyes. People with albinism often have vision problems, including hemeralopia.
	* [[Cone dystrophy]]: This is a group of eye disorders that affect the cone cells in the retina, which are responsible for color vision and visual acuity.		* [[Cone dystrophy]]: This is a group of eye disorders that affect the cone cells in the retina, which are responsible for color vision and visual acuity.
	* [[Achromatopsia]]: This is a non-progressive and hereditary visual disorder which is characterized by decreased vision, light sensitivity, and the absence of color vision.		* [[Achromatopsia]]: This is a non-progressive and hereditary visual disorder which is characterized by decreased vision, light sensitivity, and the absence of color vision.

	== Symptoms ==		== Symptoms ==

	The main symptom of hemeralopia is difficulty seeing in bright light. Other symptoms can include:		The main symptom of hemeralopia is difficulty seeing in bright light. Other symptoms can include:

	* [[Photophobia]]: An extreme sensitivity to light.		* [[Photophobia]]: An extreme sensitivity to light.
	* [[Blurred vision]]: Vision may be blurred or unclear, making it difficult to see details.		* [[Blurred vision]]: Vision may be blurred or unclear, making it difficult to see details.
	* [[Color blindness]]: In some cases, people with hemeralopia may also have difficulty distinguishing between different colors.		* [[Color blindness]]: In some cases, people with hemeralopia may also have difficulty distinguishing between different colors.

	== Treatment ==		== Treatment ==

	Treatment for hemeralopia depends on the underlying cause. In some cases, wearing sunglasses or tinted contact lenses can help to reduce sensitivity to light. In other cases, treatment may involve managing the underlying condition that is causing the hemeralopia.		Treatment for hemeralopia depends on the underlying cause. In some cases, wearing sunglasses or tinted contact lenses can help to reduce sensitivity to light. In other cases, treatment may involve managing the underlying condition that is causing the hemeralopia.

	== See also ==		== See also ==

	* [[Nyctalopia]]		* [[Nyctalopia]]
	* [[Photophobia]]		* [[Photophobia]]
	* [[Blurred vision]]		* [[Blurred vision]]
	* [[Color blindness]]		* [[Color blindness]]

	== References ==		== References ==

	<references />		<references />

	{{stub}}		{{stub}}

	[[Category:Eye disorders]]		[[Category:Eye disorders]]
	[[Category:Vision]]		[[Category:Vision]]
	[[Category:Medical conditions]]		[[Category:Medical conditions]]

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2024-02-23T17:17:24Z

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'''Hemeralopia''' (also known as '''day blindness''') is a medical condition characterized by an inability to see clearly in bright light. This condition is the opposite of [[nyctalopia]], which is difficulty seeing in low light or at night.

== Causes ==

Hemeralopia can be caused by a number of different conditions, including:

* [[Albinism]]: A genetic condition that affects the production of melanin, the pigment that colors skin, hair, and eyes. People with albinism often have vision problems, including hemeralopia.
* [[Cone dystrophy]]: This is a group of eye disorders that affect the cone cells in the retina, which are responsible for color vision and visual acuity.
* [[Achromatopsia]]: This is a non-progressive and hereditary visual disorder which is characterized by decreased vision, light sensitivity, and the absence of color vision.

== Symptoms ==

The main symptom of hemeralopia is difficulty seeing in bright light. Other symptoms can include:

* [[Photophobia]]: An extreme sensitivity to light.
* [[Blurred vision]]: Vision may be blurred or unclear, making it difficult to see details.
* [[Color blindness]]: In some cases, people with hemeralopia may also have difficulty distinguishing between different colors.

== Treatment ==

Treatment for hemeralopia depends on the underlying cause. In some cases, wearing sunglasses or tinted contact lenses can help to reduce sensitivity to light. In other cases, treatment may involve managing the underlying condition that is causing the hemeralopia.

== See also ==

* [[Nyctalopia]]
* [[Photophobia]]
* [[Blurred vision]]
* [[Color blindness]]

== References ==

<references />

{{stub}}

[[Category:Eye disorders]]
[[Category:Vision]]
[[Category:Medical conditions]]

Hemeralopia - Revision history

Prab: CSV import

Prab: CSV import