Hemeralopia

What it means

A visual defect characterized by the inability to see as clearly in bright light as in dim light. The word hemeralopia literally means day blindness.

Rare diseases that can present with this4

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