Answer:
Human eyes have one lens whereas compound eyes have many lenses
Step-by-step explanation:
Compound eyes consist of multiple lenses about up to tens of thousands where each focusing light onto a small number of retinula cells whereas simple eyes only detect changes in light level. Most of the insects have compound eyes and the biggest advantage to being an insect has to do with their field of view. Different insects have different acuity of vision due to compound eyes.