July 16, 2012 DYSGENESES OF THE IRIS AND THE CHOROID
With aniridia the iris is undeveloped – there is only a narrow atrophic ring of the iris tissue, and the pupil is huge.
Corectopia is an eccentric position of the pupil, which is, in addition, deformed. It can be congenital, but today it is mostly a result of trauma or eye surgery.
Policoria is the existence of multiple holes in the iris (multiple pupils).
Colobom of the iris is a congenital cleft in the lower part of the iris, so the pupil looks like a keyhole.
Colobom of the chorioretina is a congenital cleft of the choroid and retina caused by the non-closing of the fetal eye crack. Through a cleft in the meridian at 6 o’clock, sclera can be seen, while the rest of the eye background may be quite normal. If a gap is larger and affects macula and / or optical disk, the prognosis for vision is very poor.
Treatment:
All iris malformations can be surgically corrected. Unfortunately, they are often associated with functional and morphological changes in other parts of the eye, so the cosmetic success does not guarantee the proper development of vision