—ACOS 25
Description[]
Saa, a word drawn from the Old Tongue, is a visible indication of a person who has channeled too much of the True Power, the dark power drawn directly from the Dark One himself. It is one of the side effects from channeling with the Dark One's energies. It manifests as black flecks traveling across the eyes, increasing in number as the person channels more and more of the True Power.[1]
The Watcher/Moridin[]
The mysterious Watcher sees the saa crossing his eyes while spying on Sammael and Graendal spread chaos through an agreement with the Shaido Aiel.|[2]
Moghedien notices a single saa floating across Moridin's eyes when she first meets him.[3]
—WH 13
Demandred watches Moridin waste the True Power by destroying a rat during a meeting amongst the Chosen when they discuss Rand's attempt to cleanse saidin[4]
Rand al'Thor[]
When attacked by Semirhage and losing his left hand, Rand sees black flecks in his field of vision and feels as if looking through the water (as a result of his connection with Moridin). Nynaeve detects "a problem with his eyes" when she heals him subsequently[5].
Together with Moridin's body, Rand al'Thor inherited one motionless saa in the shape of the Dragon's Fang (male Aes Sedai symbol) in his eye[6].