Mustarde's split-level lid resection surgery was popular through the 1
980s for the correction of blepharoptosis with 7 mm or more of levator
function. Although the aesthetic results gained with this technique w
ere good, lash line deformity and eyelid margin irregularities, such a
s central peaking at forward and upward gaze, were experienced. A simp
le modification of the tarsal resection pattern of Mustarde's operatio
n has solved these complications. In the treatment of 24 ptotic eyelid
s (12 unilateral, 6 bilateral with a modified split-level lid resectio
n procedure), symmetrical appearance and level eyelids were obtained w
ithout lid margin peaking at 5 years' follow-up. The only persistent c
omplication was lid lag at down-gaze in 10 eyelids.