Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
εισβλέψασ having looked LXX.Job.6.28
εισβλέψαντεσ O ones looking LXX.Job.21.5
είσβλεψον Look in LXX.Isa.37.17

Liddell-Scott-Jones

εἰσβλέπω (eisblepō) to look in G:V

εἰσβλέπω,

look at, look upon, mostly with εἰς, [LXX+5th c.BC+]

LSJ Scripture Refs: LXX.Isa.37.17