retrotarsal

ret·ro·tar·sal

(ret'rō-tar'săl),
Posterior to the tarsus, or edge of the eyelid.

retrotarsal

(rĕt″rō-tăr′săl) [″ + Gr. tarsos, a broad, flat surface]
Behind the tarsus of the eyelid.

retrotarsal

behind the tarsus of the eye.