Some butterfly's eyes are covered in tiny hairs, known as Interfacial hairs. These hairs are believed to help orientate light which penetrates the butterfly's eye and, so are expected to perform like that of Corneal Nipples. [Springer] For more information, please go to... Link.Springer.com
|This Peacock Butterfly's eye showing the Interfacial hairs covering the|
surface area of the eye, also showing some minuscule particles of debris
caught up with-in the interfacial hairs.
|The eye of the Red Admiral butterfly, again the hairs|
covering the surface area of the eye acting as a trap
for tiny particles of debris.