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	~~'''~~Ophthalmic ~~veins''' are a pair of veins in the human body that drain the ocular region. They are divided into two types: the superior ophthalmic vein and the inferior ophthalmic vein.~~		== Ophthalmic Veins ==

	~~==Etymology==~~		[[File:Gray572.png\|thumb\|right\|Diagram of the ophthalmic veins and their connections.]]
	~~The term "ophthalmic" is derived from the Greek word "ophthalmos", which means "eye"~~. ~~The term "vein" comes from~~ the ~~Latin word "vena", which means "blood vessel"~~.

	~~==Superior Ophthalmic Vein==~~		The '''ophthalmic veins''' are a group of veins that drain the [[orbit (anatomy)\|orbit]] and surrounding structures. They are primarily responsible for the venous drainage of the eye and its associated structures, including the [[eyelids]], [[conjunctiva]], and parts of the [[nasal cavity]]. The ophthalmic veins are divided into two main veins: the [[superior ophthalmic vein]] and the [[inferior ophthalmic vein]].
	The [[~~Superior Ophthalmic Vein~~]] ~~(SOV) originates from~~ the ~~medial angle~~ of the eye~~. It passes through~~ the ~~superior orbital fissure to drain into~~ the ~~cavernous sinus~~. ~~It receives tributaries from~~ the ~~ocular muscles, lacrimal gland, eyelids,~~ and ~~conjunctiva~~.

	==~~Inferior~~ Ophthalmic Vein==		== Superior Ophthalmic Vein ==
	The [[Inferior Ophthalmic Vein]] (IOV) is smaller than the superior ophthalmic vein. It drains the inferior part of the orbit and also drains into the cavernous sinus, either directly or through the superior ophthalmic vein.

	~~==Clinical Significance==~~		The [[superior ophthalmic vein]] is the larger of the two ophthalmic veins. It begins at the inner angle of the orbit by the union of the [[supratrochlear vein]] and the [[supraorbital vein]]. It courses posteriorly through the orbit, receiving tributaries from the [[eyeball]], [[extraocular muscles]], and the [[lacrimal gland]].
	The ophthalmic veins ~~are clinically significant as they can be affected~~ by ~~various conditions. For instance, thrombosis~~ of the ~~ophthalmic~~ vein ~~can lead to~~ [[~~Ophthalmic Vein Thrombosis~~]], ~~a rare but serious condition that can cause vision loss. Infections can also spread~~ from the ~~facial veins to the ophthalmic veins due to~~ the ~~absence of valves in these veins, leading to conditions like~~ [[~~Cavernous Sinus Thrombosis~~]].

	~~==Related Terms==~~		The superior ophthalmic vein exits the orbit through the [[superior orbital fissure]] and drains into the [[cavernous sinus]], a large venous sinus located on either side of the [[sella turcica]] in the [[sphenoid bone]].
	* [[~~Ophthalmology~~]]~~: The branch of medicine that deals with~~ the ~~diagnosis and treatment of eye disorders.~~
	* [[~~Vein~~]]~~: A blood vessel that carries deoxygenated blood towards~~ the ~~heart.~~
	* [[~~Cavernous Sinus~~]]~~: A large collection of thin-walled veins creating a cavity bordered by~~ the sphenoid bone ~~and the temporal bone of the skull~~.

	==~~See Also~~==		== Inferior Ophthalmic Vein ==
	* [[Facial Vein]]
	* [[Central Retinal Vein]]
	* [[Vorticose Veins]]

	[[~~Category:Anatomy~~]]		The [[inferior ophthalmic vein]] is smaller and more variable in its course compared to the superior ophthalmic vein. It begins in a venous network on the floor of the orbit and receives tributaries from the lower part of the orbit, including the [[inferior rectus muscle]] and the [[inferior oblique muscle]].
	[[~~Category:Veins~~]]
	[[~~Category:Ophthalmology~~]]

	~~{{stub}}~~		The inferior ophthalmic vein may drain into the superior ophthalmic vein, the [[pterygoid plexus]], or directly into the cavernous sinus. Its drainage pattern can vary significantly among individuals.

			== Clinical Significance ==

			The ophthalmic veins are clinically significant due to their connections with the [[cavernous sinus]]. Infections or thrombosis in the facial region can spread to the cavernous sinus via the ophthalmic veins, leading to a condition known as [[cavernous sinus thrombosis]]. This condition can result in serious complications, including [[cranial nerve]] palsies and [[vision loss]].

			== Related Pages ==

			* [[Orbit (anatomy)]]
			* [[Cavernous sinus]]
			* [[Superior orbital fissure]]
			* [[Extraocular muscles]]

			[[Category:Veins of the head and neck]]

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'''Ophthalmic veins''' are a pair of veins in the human body that drain the ocular region. They are divided into two types: the superior ophthalmic vein and the inferior ophthalmic vein.

==Etymology==
The term "ophthalmic" is derived from the Greek word "ophthalmos", which means "eye". The term "vein" comes from the Latin word "vena", which means "blood vessel".

==Superior Ophthalmic Vein==
The [[Superior Ophthalmic Vein]] (SOV) originates from the medial angle of the eye. It passes through the superior orbital fissure to drain into the cavernous sinus. It receives tributaries from the ocular muscles, lacrimal gland, eyelids, and conjunctiva.

==Inferior Ophthalmic Vein==
The [[Inferior Ophthalmic Vein]] (IOV) is smaller than the superior ophthalmic vein. It drains the inferior part of the orbit and also drains into the cavernous sinus, either directly or through the superior ophthalmic vein.

==Clinical Significance==
The ophthalmic veins are clinically significant as they can be affected by various conditions. For instance, thrombosis of the ophthalmic vein can lead to [[Ophthalmic Vein Thrombosis]], a rare but serious condition that can cause vision loss. Infections can also spread from the facial veins to the ophthalmic veins due to the absence of valves in these veins, leading to conditions like [[Cavernous Sinus Thrombosis]].

==Related Terms==
* [[Ophthalmology]]: The branch of medicine that deals with the diagnosis and treatment of eye disorders.
* [[Vein]]: A blood vessel that carries deoxygenated blood towards the heart.
* [[Cavernous Sinus]]: A large collection of thin-walled veins creating a cavity bordered by the sphenoid bone and the temporal bone of the skull.

==See Also==
* [[Facial Vein]]
* [[Central Retinal Vein]]
* [[Vorticose Veins]]

[[Category:Anatomy]]
[[Category:Veins]]
[[Category:Ophthalmology]]

{{stub}}

Ophthalmic veins - Revision history

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