A luminaire may include a light engine comprising a plurality of LEDs arranged in one or more annular rows. The luminaire may include an optic. The optic may include an annular optic body having a light entrance side facing the plurality of LEDs and a light exit side opposite the light entrance side. A plurality of annular grooves may be defined within the light exit side, the plurality of annular grooves being coaxial with the optic body. A plurality of arc-shaped grooves may be defined within the light exit side. Each of the plurality of arc-shaped grooves may be convex relative to a center of the optic. Each of the plurality of arc-shaped grooves may intersect at least one of the plurality of annular grooves. The optic may be configured to produce a Unified Glare Rating of less than 28.