Just out: VoR of our novel cost-benefit analysis of eye design. Applied to simple and compound eyes, discovers that photoreceptor costs shape design of entire eye, explains why diurnal insects have world's longest photoreceptors, and revises scaling of acuity with eye size. doi.org/10.7554/eLif...
Allocating space, materials and energy to an eye's optics and photoreceptor array is a major factor in eye design that explains obvious differences between simple eyes and compound eyes.