compound eye (IMAGE) Technische Universität Dresden Caption Transmission light micrograph of the inside of the compound eye of the horseshoe crab showing the array of light-collecting lenses. The lenses appear dark or bright depending on the viewing angle. Credit Oliver Spaeker Usage Restrictions No License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.