Ophthalmic veins
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[edit | edit source]
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[edit | edit source]
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[edit | edit source]
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[edit | edit source]
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[edit | edit source]
- 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[edit | edit source]
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