What he came to realize was that in terms of space, time, and the void, his Tri-Pupil Eyes were vastly superior to his Eyes of Omniscience.
Unlike his Eyes of Omniscience which specialized mainly in seeing 'everything' in an unfiltered manner, his Tri-Pupil Eyes were more focused on space, time, and the void.
They could show him more and noticed more things about space, time, and the void.
Also, his Tri-Pupil Eyes could prevent him from seeing things that should not be seen.
He could clearly remember what happened when he first tried to teleport and how he was teleported to an unknown place that almost killed him.
Because of his Eyes of Omniscience which allowed him to see things he was not meant to see, he almost died.
His Tri-Pupil Eyes was able to prevent him from seeing these things while also protecting his eyes from the damage that would have happened to his eyes just from gazing in the direction of the entities that almost devoured him.
