What Is a Myectomy?

Müller myectomy

Müller myectomy

Right!

1.0.5% tetracaine surface anesthesia. Subconjunctival dome was injected with 2% lidocaine + 0.5% bupivacaine 1: 2 mixed solution 0.5ml. Too much anesthesia can cause drooping of the upper eyelid, making it difficult to determine whether the amount of surgical resection is appropriate. 2. Make a traction suture on the edge of the eyelid, and use the eye hook to flip the upper eyelid. 3. Make a vertical incision of 10mm on the outer side of the superior fornix conjunctiva, and use the iris restorer to separate between the conjunctiva and Müller muscle.

Müller myectomy

Muller myectomy

Ophthalmology / Eyelid Surgery / Eyelid Retraction Correction / Upper Eyelid Retraction Correction

08.3801

The upper eyelid retreat is manifested by widening of the fissure of the eye, the upper part of the sclera is exposed, and the upper eyelid cannot move downward with the eyeball when the eyeball is gazed downward. It is one of the most common eye diseases of Graves' eye disease. Most people with hyperthyroidism develop the disease in both eyes, and those with normal thyroid function develop the disease in one eye.

Müller myectomy is suitable for:

1. Surgery can be considered only if the thyroid function test is normal.

2. The upper eyelid withdraws and exposes the cornea, epithelial erosion or corneal infiltration.

3. Hyperthyroidism or Graves ophthalmopathy has stabilized the upper eyelid retraction lesions for more than six months.

4. Unilateral upper eyelid retraction and widened palpebral fissures form defects in appearance.

1.0.5% tetracaine surface anesthesia. Subconjunctival dome was injected with 2% lidocaine + 0.5% bupivacaine 1: 2 mixed solution 0.5ml. Too much anesthesia can cause drooping of the upper eyelid, making it difficult to determine whether the surgical resection amount is appropriate.

2. Make a traction suture on the edge of the eyelid, and use the eye hook to flip the upper eyelid.

3. Make a vertical incision of 10mm on the outer side of the superior fornix conjunctiva, and use the iris restorer to separate between the conjunctiva and Müller muscle.

4. Make a 10mm long vertical incision on the medial conjunctiva, cut the conjunctiva along the edge of the meibomian plate, and flip the conjunctival flap upward to expose the back of the Müller muscle.

5. Find out the lateral edge of the Müller muscle and use the iris restorer to separate the Müller muscle from the superior levator aponeurosis. Peel to the edge of the meibomum 10mm, and exit from the medial edge of the Müller muscle. .

6. Cut off the Müller muscle at the upper edge of the meibomium, and then cut off the Müller muscle 10 mm from the upper edge of the meibomium.

7. Ask the patient to sit up and observe whether the upper eyelid still withdraws and whether the bilateral eyelids are symmetrical. If the feeling is insufficient, cut the part of the palpebral aponeurosis at the middle of the upper edge of the meibomium until the palpebral fissure is symmetrical on both sides.

8. The conjunctival horizontal incision is sutured continuously with 7-0 silk.