1
לא כהתה עינו. אַף מִשֶּׁמֵּת: לא כהתה עינו HIS EYE WAS NOT DIM — even after he had died (Sifrei Devarim 357:34).
2
לא נס לחה. לַחְלוּחִית שֶׁבּוֹ, לֹא שָׁלַט בּוֹ רִקָּבוֹן וְלֹא נֶהְפַּךְ תֹּאַר פָּנָיו: ולא נס לחו means, nor did the life-sap that was in him depart (Sifrei Devarim 357:35): decomposition had no power over him (had no effect on his body), and the appearance of his face had not changed.