俱舍論頌疏論本 2.72

2.72

釋曰：阿毘達磨諸大論師皆咸言：「或時二眼俱見，以開二眼見色分明，閉一目時不分明故，故知有時二眼見色。」又開一眼，觸一眼時，便於現前見二月等。閉一觸一，此事即無。是故或時二眼俱見，非所依別，識成二分，住無方所，故不同礙色也。

The commentary says: The great masters of the Abhidharma all say: "Sometimes both eyes see together, because when opening two eyes one sees form clearly, whereas when closing one eye it is not clear; therefore, we know that sometimes two eyes see form." Moreover, when opening one eye and pressing the other eye, one sees two moons and so forth before one; when closing one and pressing one, this does not happen. Therefore, sometimes both eyes see simultaneously. It is not that because the supports are distinct, the consciousness is split into two portions, for it resides without spatial location, and thus is unlike obstructive matter.