About CHM

Because knowledge brings clarity and hope.

Choroideremia (CHM) is a rare, inherited retinal condition that causes progressive vision loss over time. It often begins with difficulty seeing at night or in low light and gradually affects peripheral vision before impacting central sight later in life.

While CHM is uncommon, its effects are deeply personal. It influences how people move through the world, plan for the future, and adapt daily routines. Because it is genetic, multiple members of the same family may share the diagnosis, creating both challenges and a strong sense of connection.

Today, researchers, clinicians, and families around the world are working together to better understand CHM and advance potential treatments. Increased awareness and education help empower individuals, strengthen communities, and move us closer to a future with more options and greater hope.