Blepharoptosis is a term specifically meaning drooping of the upper eyelid. Ptosis means drooping, but many refer to blepharoptosis as, simply, ptosis.
A meibomian gland is a sebaceous gland in the upper eyelid.
Blepharospasm is the medical term meaning eyelid spasm.
BlepharoptosisIt is called ptosis of the eyelid. Ptosis occurs when the muscles that raise the eyelid are not strong enough to do so properly. It can affect one eye or both eyes and is more common in the elderly, as muscles in the eyelids may begin to deteriorate. One can, however, be born with ptosis. Congenital ptosis is hereditary in three main forms. Causes of congenital ptosis remain unknown. Ptosis may be caused by damage/trauma to the muscle which raises the eyelid, or damage to the (3rd cranial nerve (oculomotor nerve)) which controls this muscle. Such damage could be a sign or symptom of an underlying disease such as diabetes, a brain tumor, and diseases which may cause weakness in muscles or nerve damage, such as myasthenia gravis. Exposure to the toxins in some snake and insect venoms, such as that of the black mamba may also cause ptosis.
blephropathy
Blepharoplasty is the medical term meaning surgical repair of the eyelid.
conjunctivaconjunctive
The medical term for involuntary contractions of the eyelid is blepharospasm. This condition can cause the eyelid to twitch or close intermittently and may be temporary or chronic.
The medical term for turning inward of the edge of an eyelid is "entropion." This condition can cause discomfort, irritation, and potential damage to the cornea due to the eyelashes rubbing against it. Treatment may involve surgery to correct the positioning of the eyelid.
Carpoptosis or Radial nerve palsy
Blepharorrhaphy is the medical term meaning surgical suture of the eyelid. Tarsorrhaphy is a related term meaning partially suturing the eyelids closed.
Blepharoplasty means surgical repair of the eyelid. There are more specific names for blepharoplasty procedures as well. For instance, for droopy upper or lower eyelids caused mainly by aging, the frontalis sling procedure may be used.
Ptotic means drooping or turning downward.