Iris pigment dispersion

What it means

Shedding of the pigment granules that normally adhere to the back of the iris into the aqueous humor.

These pigment granules can accumulate in the trabucular meshwork and lead to increased intraocular pressure. That is coded separately as HP:001263.

Rare diseases that can present with this1

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category