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IPAD · LANDSCAPE · ONE EYE AT A TIME
A small window
into central vision.
Calibrate your screen, settle at 40 cm, then follow the X.
Four practice trials guide you into the session.
01 Match the physical size
Place a ruler against the screen. Adjust the line below until its end marks are exactly 50 mm apart.
Use the slider, the fine adjustment buttons, or drag the line’s end with Apple Pencil.
Physical calibration required.
02 Prepare your session
Keep your usual viewing correction. Use the same device and browser for both sessions in a pair.
Experimental prototype; no diagnostic score or clinical alerts. Records stay in this browser until you export them.