Arcus Senilis
Bilateral peripheral FattyZ degeneration
Common in old age
Symptoms non
Signs
- Arc shaped opacity in the upper ½ or cornea then lower ½
- Clear zone between the opacity and Limbus (Lucid interval of Vogt)
- Outer border is sharp and well defined
- Inner border is diffuse and illdefined
NB ARCUS JUVENILIS may occur in hyperlipidemia or juvenile DM
