A '''simple eye''' is an [[eye]] with only one [[lens]], in contrast to [[compound eyes]] which have several lenses contained within a single occular structure.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia | A '''simple eye''' is an [[eye]] with only one [[lens]], in contrast to [[compound eyes]] which have several lenses contained within a single occular structure.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia |