1928 F. T. Barton 372 Wall eye..is applied to one or both eyes..in which the iris or the irises is destitute of its usual pigmentation, giving the eye a light colour—China eye.
1964 F. O'Rourke (1967) vi. 80 He turned and his right eye rolled, the china eye, white-marbled and yellow-veined, the birthmark, the trademark of the man.