Irido- Corneal Endothelial syndrome is characterized by
**Core Concept**
Irido-Corneal Endothelial (ICE) syndrome is a rare, progressive condition affecting the cornea and iris, characterized by a complex interplay of endothelial dysfunction, iris atrophy, and corneal edema. It is often associated with an abnormal endothelial cell layer and a subsequent increase in intraocular pressure (IOP).
**Why the Correct Answer is Right**
ICE syndrome is typically unilateral and presents with a characteristic "ciliary ring" or "ciliary flush" due to the abnormal endothelial cell layer. The condition often leads to progressive corneal edema, iris atrophy, and posterior synechiae. The pathophysiology involves a combination of endothelial dysfunction, increased aqueous humor outflow resistance, and a subsequent increase in IOP.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not accurately describe the characteristic features of ICE syndrome. While corneal edema is a feature, it is not the primary characteristic.
**Option B:** This option is incorrect as it does not accurately describe the pathophysiology of ICE syndrome. Increased IOP is a consequence, not the primary cause.
**Option C:** This option is incorrect as it does not accurately describe the clinical presentation of ICE syndrome. The ciliary ring or ciliary flush is a characteristic feature, but it is not the only one.
**Clinical Pearl / High-Yield Fact**
ICE syndrome is often associated with a poor prognosis, and timely intervention, such as corneal transplantation, may be necessary to prevent vision loss.
**Correct Answer:** C.