Eye comfort
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Ready
Use the camera, or match the room by eye.
How sensitive
Typical indoor comfort
Iris reads the room through your camera — or an estimate you match by eye — then compares that brightness to a threshold for your eyes. This screen stays dark on purpose so the app itself is never the glare.
Look twenty feet away. Soften your focus. Let the brightness in the middle of your vision fall off.
Nothing logged yet. A camera check saves itself; an estimate waits for you to keep it.
Iris estimates brightness. It is not a medical device, and it cannot replace an optometrist. If light regularly hurts, that is worth a real conversation with a clinician.