Impaired convergence

What it means

Reduced ability to turn the eyes inward in order to focus on a nearby object.

Vergence alters the angle between the two eyes to adjust for changes in distance from the visual target.

Rare diseases that can present with this2

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

Also called: Convergence insufficiency