BLEPHAROPLASTY
Blepharoplasty is a surgical procedure in which redundant skin of the upper and/or lower eyelids and protruding periorbital fat are removed. This procedure can be performed for either cosmetic or reconstructive purposes.
BLEPHAROPTOSIS REPAIR
Blepharoptosis (upper eyelid ptosis), also referred to as true ptosis, is the drooping of the upper eyelid due to underlying eye muscle dysfunction (e.g., levator muscle or Muller's muscle). Surgical repair of blepharoptosis, including repair of the eye muscle, is sometimes performed in conjunction with blepharoplasty.
BROW PTOSIS REPAIR
Blepharoplasty can be performed alone or in conjunction with other procedures, such as a brow lift. A brow lift for brow ptosis (drooping of the eyebrow) restores the proper anatomical and functional position of the brow and/or alleviates complaints of ocular fatigue secondary to continuous action of the frontalis muscle. A brow lift may be indicated at the time of blepharoplasty in order to correct a functional impairment.
CANTHOPLASTY, CANTHOPEXY
Canthoplasty is a procedure designed to reinforce lower eyelid support by detaching the lateral canthal tendon from the orbital bone and constructing a replacement. Canthopexy is a procedure designed to stabilize or tighten the existing tendon and surrounding structures without removing the tendon from its normal attachment.
Canthoplasty and canthopexy are appropriate treatments in conditions such as posttraumatic ectropion that can cause the lower lid to pull away from the cornea. Conditions such as posttraumatic ectropion where the lid margin has an outward turning away from the globe may lead to epiphora (excessive tearing), corneal desiccation (state of extreme dryness), and/or ulceration. In recent years, canthoplasty and canthopexy are performed in conjunction with lower lid blepharoplasty. There reportedly is the potential risk of inducing lower eyelid malposition if support is not applied through either canthoplasty or canthopexy.
ENTROPION/ECTROPION REPAIR
Entropion and ectropion are conditions resulting in the inward and outward turning of the eyelashes, respectively. While entropion/ectropion generally affects the lower eyelid, the upper eyelid may also be impacted. There are several surgical techniques contingent on the etiology including suture, thermocauterization, excision of the tarsal wedge, and more extensive repairs involving the tarsal strip or capsulopalpebral fascia.
LAGOPHTHALMOS CORRECTION
Lagophthalmos is the inability for the eyelid to completely close, leaving the cornea exposed. Approximately 80% of cases are a result of facial paralysis caused by Bell palsy. Persistent corneal exposure may progress to corneal ulceration and infectious keratisis, potentially leading to vision loss. Correcting for lagophthalmos generally involves the insertion of a gold weight or other lid load into the upper eyelid allowing the restoration of eyelid closure movement via gravity-assisted closure.
LID RETRACTION CORRECTION
Lid retraction is a malposition of the eyelid resting abnormally high and/or low, generally resulting in increased exposure of the surface of the eye. The corrective procedure is often indicated for individuals with Graves' ophthalmopathy (i.e., thyroid eye disease), but may also be appropriate to correct for surgical complications, facial palsy, or trauma.
CONDITIONS THAT MAY REQUIRE BLEPHAROPLASTY, BLEPHAROPTOSIS REPAIR, BROW PTOSIS REPAIR, CANTHOPLASTY/CANTHOPEXY, ENTROPION/ECTROPION REPAIR, LAGOPHTHALMOS CORRECTION, AND LID RETRACTION CORRECTION
A deficit in the upper or peripheral field of vision can be identified by photographing an individual in a forward-gazing position and noting whether excessive skin rests on or over the upper eyelashes. The following are examples of conditions that may contribute to such a deficit and lead to a visual impairment for which corrective surgery may be indicated:
- Blepharochalasis: Excessive skin around the eye, usually associated with the disease process of chronic blepharedema, which physically stretches and thins the skin.
- Blepharoptosis (upper eyelid ptosis): Drooping of the upper eyelid that relates to the position of the eyelid margin in forward gaze with respect to the eyeball and visual axis. This measured distance noted on a forward gaze from the upper lid margin to the midpoint of the pupil is called the margin-to-reflex distance (MRD).
- Blepharospasm: Blepharospasm, generally referred to as benign essential blepharospasm, is the intractable twitching or blinking of the eyelid.
- Brow ptosis: Drooping of the eyebrow that relates to the position of the brow relative to the superior orbital rim.
- Congenital ptosis: Drooping of the upper eyelid that is usually present at birth but may occur within the first year of life. Congenital ptosis may affect one or both eyes and create varying degrees of impairment. It can be mild (the drooping eyelid partially covers the pupil) or severe (the eyelid completely covers the pupil).
- Corneal ulcer: An open sore in the outer layer of the cornea characterized by white, hazy spots.
- Dermatochalasis: Excessive skin around the eye with loss of elasticity, usually the result of the aging process.
- Ectropion: A sagging or outward turning of the eyelid margin leaving the cornea and conjuctiva exposed.
- Entropion: A condition where the eyelid turns inward so that the eyelashes touch the eye surface.
- Epiphora: Excess tearing or the inability to drain away tears.
- Lagophthalmos: The inability to fully close the eyelid leaving a space between the upper and lower eyelid margin during extreme downgaze.
- Other ptosis of the eyelid: Etiology can be traced to idiopathic, neurogenic, or mechanical causes
- Pseudoptosis (false ptosis): Pseudoptosis generally refers to a change in the position of the globe, causing the appearance of ptosis. Upward deviation of the affected eye and retraction of the upper lid of the contralateral eye are examples of pseudoptosis. Causes include, but are not limited to, brow ptosis, dermatochalasis, and anophthalmos.
- Status post-periorbital tumor resection: When a functional impairment exists after tumor resection of any eye-related structure.
- Traumatic ptosis: Ptosis caused by injury to the levator aponeurosis.
- True ptosis: True ptosis is a weakening or malfunction of the levator muscle that is typically characterized into congenital (at birth) or acquired ptosis. Etiological factors of acquired ptosis include, but are not limited to, aponeurotic, neurogenic, myogenic, mechanical, and traumatic ptosis.
COSMETIC AND RECONSTRUCTIVE SERVICES
Cosmetic services are services provided to improve an individual’s physical appearance, from which no significant improvement in physiologic function can be expected. Emotional and/or psychological improvement alone does not constitute improvement in physiologic function. When performed for cosmetic reasons, blepharoplasty reshapes eye-related structures in order to improve appearance and self-esteem.
Reconstructive services are defined as any medical or surgical service designed to restore bodily function or to correct a deformity that has resulted from trauma, the treatment of disease, or a congenital defect. When provided as part of a reconstructive procedure, blepharoplasty, blepharoptosis repair, brow ptosis repair, canthoplasty/canthopexy, entropion/ectropion repair, lagophthalmos correction, and lid retraction correction usually involve the excision of skin, repair of the underlying eye muscle, insertion of weight into the eyelid, and/or stabilization of tendons in order to improve the physiologic functioning of that portion of the eyelid.