Bedside visual acuity assessment for hospital room displays
Bedsight is a screening aid. Results depend on correct screen calibration and viewing distance, and do not replace a formal ophthalmologic examination.
Letter sizes are computed from the physical screen size and the patient's viewing distance, so both must be accurate.
Enter the 5-letter room code shown on the TV.
Same device (two browser tabs) works without internet. Cross-device pairing uses a WebRTC handshake and needs internet on both devices.
Scan with your phone camera to open the controller — it connects automatically.
Or open Bedsight manually, choose Control, and enter this room code:
Calibrate this screen first: hold a standard credit/ID card against the outline and drag the slider until the outline matches the card exactly.
Then hand the device to the patient, held at 16 inches / 40 cm from their eyes.