Original Article

Systemic and Ophthalmologic Findings in Patients with Iris Coloboma


  • Sevda Ertekin
  • İdil Göksel
  • Nurgül Kuş
  • Ayşe Ayça Sarı

Received Date: 02.07.2012 Accepted Date: 09.10.2012 Turk J Ophthalmol 2013;43(1):19-22


Ocular coloboma is a rare malformation resulting from defective closure of the embryonic optic fissure. It can affect iris, retina, choroid, optic disc or ciliary body. This study reviews the clinical diagnosis and the accompanying ocular and systemic abnormalities in cases of iris coloboma.

Ma­te­ri­al and Met­hod:

Sixteen eyes of ten patients referred to our clinic and diagnosed as iris coloboma were included in the study and were reviewed retrospectively.


Seven cases were sporadic, and three cases were familial. Isolated iris coloboma was present in only one case, and chorioretinal involvement was present in all the others. Seven cases had involvement of the optic disc. Other ocular anomalies were unilateral microphthalmia in 3 cases, unilateral anophthalmia in 1 case, and unilateral microcornea in one case. Strabismus was present in the familial cases.


In patients, diagnosed with iris coloboma, routine eye examination should be completed, refractive errors should be corrected, and these patients must be follewed for amblyopia. If strabismus is concominant, surgery can be performed. For potential complications, patients should be checked at regular intervals.

Keywords: Iris coloboma, ocular anomaly, systemic anomaly

Full Text (Turkish)