Focusing the Eye Quest: How to Complete in WoW Shadowlands
Completing this quest will give you the passive ability Blind the Eye, completely negating the Eye of the Jailer debuff, a debuff that slowed down player progression slightly being a minor inconvenience.
Once you reach the Terminus platform as per the first objective of Focusing the Eye, don't bother fighting the eye itself, instead, take care of the trash mobs around the eye.
You will see spears scattered along the ground, walk over these and an action button will appear for you to interact with. Clicking the button will throw a spear at the eye's cohorts, dragging them down to the ground, allowing you to kill the adds.
Keep in mind, there will be deathly swirlies that come around you as you try and force the descent of the eye's minions, dodge these swirlies and you will be all set.
Repeat the spear hurling three times until the eye flees and the fight is complete!