Hello again, this topic will go over Iris defects of the eye, the Iris is the colored structure of the eye and sometimes it may look different and odd to its normal appearance, we will go over some of them:
The first defect is called Aniscoria, it is a condition where the pupils are not the same size, usually there are no abnormal effects on vision and everything else is relatively normal. The photo on the bottom also shows heterochromia which is a difference in color between the two eyes.
The second defect is called Adie's Pupil, it is a neurological disorder where one of the pupils stays dilated and/or reacts poorly to light. In the photo you actually see both eyes widely dilated, sometimes it can also affect both eyes as well.
Then we have another defect called Coloboma, is a hole or gap in the Iris, usualy it is congential and develop before birth. The bottom photo shows how the defect may look like, sometimes Coloboma is known as the "keyhole" defect as you can see below.
That is all for now! Again if you have any question or suggestions please post below!
Until the next time cheers!
If you are interested in more topics, Read my previous article on ocular diseases and defects:
Ocular Diseases: part 1
Read my other topics to get more insight on anatomy of the eyes:
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