וְלֹ֥א תִשְׁעֶ֖ינָה עֵינֵ֣י רֹאִ֑ים וְאָזְנֵ֥י שֹׁמְעִ֖ים תִּקְשַֽׁבְנָה׃
Es werden nicht mehr verblendet sein die Augen der Sehenden, und die Ohren der Hörenden werden aufhorchen.
Rashi on Isaiah
And the eyes of them that see shall not be sealed (Heb. תִשְׁעֶינָה) Not as they are now, that “his ears are becoming heavy, and his eyes are becoming sealed (הָשַׁע)” (supra 6:10), an expression of sealing.
Ibn Ezra on Isaiah
תשעינה Shall be dim. Root שעע. Comp. השע Shut4Lit., cause to be dim. (6:10)