Modified Loop Myopexy (Yokoyama's Procedure) for High Myopic Strabismus Fixus

Area of Science:

• Ophthalmology
• Surgical Techniques

Background:

• The Yokoyama loop myopexy is a standard procedure for treating strabismus.
• Deep orbital anatomy and narrow palpebral fissures present surgical challenges in muscle belly union.

Observation:

• The classic Yokoyama procedure is technically difficult for muscle union in deep orbits.
• Specific patient characteristics, such as deep-set eyes and narrow palpebral fissures, exacerbate these difficulties.

Findings:

• A modified Yokoyama procedure was developed to address these surgical challenges.
• The modification incorporates lateral canthotomy and cantholysis, along with upper conjunctival fornix incisions.
• These modifications facilitate muscle belly union in the deep orbit.

Implications:

• The enhanced surgical access may improve outcomes for the Yokoyama loop myopexy.
• This modified technique could be beneficial for patients with challenging orbital anatomy.
• Further research should evaluate the long-term efficacy and safety of this modified procedure.