uncommon evocation light 

Traditions arcane, divine, occult, primal

Cast [>>>] somatic, material, verbal

Range 120 feet; Area 20-foot burst

Duration 1 minute

You create an area of bright light. Creatures with light blindness (Bestiary 343) that are blinded by radiant field and remain in the area must attempt a Fortitude save at the start of their turns. On a failure, a creature remains blinded for 1 round; this is an incapacitation effect. This spell also suppresses magical darkness of your radiant field spell's level or lower.

Heightened (4th) Creatures seen through the area are concealed to creatures with light blindness, even those that are outside the area.

Strength of Thousands #4: Secrets of the Temple-City, page 78.