The superior and inferior components of Whitnall's ligament

During an orbital dissection in a 60-year-old white male, we came across a very well defined superior and inferior component of Whitnall's ligament (Figure 1). The superior component of Whitnall's ligament is well described and well known to ophthalmologists performing eyelid surgery. The inferior component, however, is not well recognized or described. This cadaver dissection illustrates both Whitnall's components well.