The compound eye of a grasshopper detects movement and helps the grasshopper to see.
;)
A compound eye on a grasshopper helps them detect predators and the simple eyes that a grasshopper has help them detect light.
Compound Eyes are a group of thousands of participates that capture light, color and brightness.
Compound eyes detect motion, and simple eyes detect light. or The compound eyes are used to "see". The simple eyes are used to detect light intensity.
It has both.2 compound eyes and 3 simple eyes