Tarsal Plate of Left Upper Eyelid (Tarsus superior sinister)
Educational content only — not medical advice.
Anatomy
The tarsal plate of the left upper eyelid (superior tarsus) is a firm, semilunar plate of dense fibrous tissue measuring about 10 mm in vertical height that forms the principal structural skeleton of the upper lid. Anchored to the orbital margins by the medial and lateral palpebral ligaments, it embeds approximately 30–40 vertical Meibomian (tarsal) glands.
Clinical notes
Chalazion is a chronic lipogranulomatous inflammation of a Meibomian gland embedded within the tarsal plate, presenting as a painless firm eyelid nodule; surgical incision and curettage is performed vertically to avoid dividing adjacent glands.
Related structures
Educational references
FAQ
What is the role of the Tarsal Plate of Left Upper Eyelid?
The tarsal plate of the left upper eyelid (superior tarsus) is a firm, semilunar plate of dense fibrous tissue measuring about 10 mm in vertical height that forms the principal structural skeleton of the upper lid. Anchored to the orbital margins by the medial and lateral palpebral ligaments, it embeds approximately 30–40 vertical Meibomian (tarsal) glands.
Why is the Tarsal Plate of Left Upper Eyelid clinically important?
Chalazion is a chronic lipogranulomatous inflammation of a Meibomian gland embedded within the tarsal plate, presenting as a painless firm eyelid nodule; surgical incision and curettage is performed vertically to avoid dividing adjacent glands.
Source & license
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