Fig. 32. A. Schematic diagram of subtarsal transconjunctival lower lid orbitotomy. Initial dissection allows the orbital septum to be kept intact to prevent orbital fat from prolapsing into the operative field. B. After the flap is retracted, the peripheral orbit may be entered by incising the orbital septum, or the subperiosteal space may be entered by incising and elevating periorbita at the inferior rim.