Arcus Senilis

Cornea & Ocular Surface
Written By Madhuvanthi Mohan

  • Bilateral grey to white band of peripheral corneal opacification.


FEATURES:

  • Bilateral.

  • Fine dots with a clear zone between it and limbus (clear interval of Vogt).

  • Diffuse central border with sharp peripheral border.

  • Begins superiorly & inferiorly and involves entire periphery.

  • Asymmetric in Unilateral Carotid vascular disease ( decreased arcus ) & chronic ocular hypotony (increased arcus)

LOCATION:

  • Begins in DEEP STROMA with progression to superficial stroma.

COMPOSITION:

  • Extracellular corticosteroid esters of lipoproteins of low density.

  • Lipid material leaks from limbal capillaries with central flow being limited because of a functional barrier to the flow of large molecules on the cornea.

ARCUS JUVENILIS:

  • Associated with increased plasma cholesterol and LDL levels in men younger than 50 years.

  • Increased risk of mortality from CHD and Cardiovascular disease

  • Increased risk for type 2a dyslipoproteinemia.


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Image from Rajan Eye Care Hospital

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Madhuvanthi Mohan
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Vogt’s Striae - Keratoconus
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