Iris Coloboma

Coloboma of the iris is a hole or defect of the iris of the eye. Most colobomas are present since birth (congenital).

Coloboma of the iris may look like a black, round hole located in or next to the colored part of the eye (iris). It can look like a black notch of different depths at the edge of the pupil. This gives the pupil an irregular shape. It can also appear as a split in the iris from the pupil to the edge of the iris. (from (link))

A small coloboma (especially if it is not attached to the pupil) may allow a second image to focus on the back of the eye, causing:

  • Blurred vision
  • Decreased visual acuity
  • Ghost image

Image source imedicalstuff tumblr (link)

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