Defects of the upper or lower eyelids following trauma, surgery of due to absence since birth can be corrected by oculoplastic surgery.

Drooping of eyelids can be corrected by plastic surgery to improve the field of vision.
Baggy eyelids can be corrected by a day care procedure done under local anaesthesia to give youthful appearance to the face. Eyeball socket reconstruction

Post traumatic injury to the eyeball can lead to fracture of the bony orbit with sinking of eyeball leading to double vision which can be corrected by inserting a bone plate below the eyeball.