Ahriman

A giant eye with two enormous wings and two tiny legs. It has the ability to paralyze, blind, and cast a Death Sentence/Doom spell, and is quite good at being a nuisance in battles with multiple monsters.

FF1 Dawn of Souls in-gameFF1 (Dawn of Souls)
-Ahriman
FF3 in-gameFF3
-Ahriman
FF4 in-gameFF4
-Floating Eye
-Red Eye
-Veteran
-Plague
FF6 in-gameFF6
-Veteran (NA) / Ahriman (JP)
FF7 in-gameFF7
-Allemagne (NA) / Ahriman (JP)
FF9 in-gameFF9
-Veteran (NA) / Ahriman (JP)
FF10 in-gameFF10
-Ahriman
-Bat Eye
-Buer
-Evil Eye
-Floating Death (NA) / Death Float (JP)
-Floating Eye
-One Eye
FFX-2
-Ahriman
-Fly Eye
-Vertigo
-Grim Gaze (NA) / Death Gaze (JP)
FF11 in-gameFF11
-Ahriman (various)
FF12
-Ahriman (boss)

Although there is a boss called this, it in no way resembles the classic eyeball monster except perhaps as a vague impression in its armor; it does share the ability to cast Doom, however.

CP: In ancient times, Sochen Cave Palace was used as a ground for spiritual training by monks and ascetics. Here they purified their hearts, yet the corruption they washed away pooled, becoming the black soil out of which the Ahriman is said to have grown. This coalescence of discarded corruption hates those with pure hearts, and attacks with vengeful animosity. For this, the Ahriman is considered an enemy by most religions of Ivalice.
Tactics in-game FF:Tactics artTactics
-Ahriman
-Flotiball (NA) / Floating Eyeball (JP)
-Plague
TA in-game TA face picTactics Advance
-Ahriman
-Floateye
CC in-gameCrystal Chronicles
-Ahriman
-Ice Ahriman
-Lava Ahriman