大方廣佛華嚴經隨疏演義鈔 37.15

37.15

疏「此喻了因惑俱」者，翳喻於惑，眼喻了因，但見有垢非全不見。然見空華無而謂有，不見於無即不見法。

Regarding the Commentary's 'This metaphor [indicates that] the revealing cause and defilement coexist': cataract is a metaphor for defilement; the eye is a metaphor for the revealing cause. One merely sees with defilement; it is not that one does not see at all. However, seeing sky-flowers is regarding what is non-existent as existent; not seeing non-existence is precisely not seeing dharmas.