harsh glare

• blindingPainfully intense light
• squintPartly close eyes
• sunEarth's primary star
• brightnessDegree of light emitted
• glaringHarshly conspicuous or bright

dazzle · intense · piercing · brilliant · headlights · reflection · white · scorching · fluorescent · unforgiving · stark · eye-strain · sunglasses · visor · wince · bleached · midday · desert

• light effectsshine, glow, gleam, shimmer, glitter
• overstimulationsensory overload, overstimulation, cognitive overload, cacophony, overwhelm