Common iris cases
(click on the picture or condition for description and questions)

Most physical signs of the iris are easy to spot provided you remember to look for them. In the examination, these 
signs may be the associated features of the primary condition (such as peripupillary iris transillumination in 
pseudoexfoliation syndrome or iris atrophy and abnormal iris vessels in Fuchs' heterochromic cyclitis) or form the 
main condition (such as aniridia or iris naevus/melanoma). 

Signs in the iris can be grouped into:

  • iris transillumination
  • alterted pigmentation of the iris (which in turn can give rise to heterochromic iridis)
  • lesion on the iris
  • absence of iris
  • abnormal shape of the pupil (corectopia or polycoria) such as iridocorneal endothelial syndrome.
  • abnormal vessels on the iris (mainly neovascularization as in neovascular glaucoma)

iris transillumination

iris coloboma

pigmented iris lesion


heterochromic iridis


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