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Muscles of the Eye

Muscles of the Eye

The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for vision. The human eye is controlled by ten muscles — six extraocular muscles, three intraocular muscles, and one primary eyelid retractor muscle.
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and...

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Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...

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Sliding Shape Extraocular Muscle Transposition with Plication: A Novel Method.

Birsen Gokyigit¹, Asli Inal¹, Bulut Ocak¹

¹Department of Ophthalmology, University of Health Sciences Beyoglu Eye Training and Research Hospital, Istanbul, Turkey.

Beyoglu Eye Journal

|February 21, 2022

Summary

A novel surgical technique for extraocular muscle surgery offers a safe and effective method for muscle strengthening and transposition. This approach successfully widened muscles in patients needing significant resection, with no reported anterior segment ischemia.

Keywords:

Extraocular muscles sliding shape transposition strabismus vessel protection,

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Area of Science:

Ophthalmology
Surgical Techniques

Background:

Strabismus surgery often involves muscle resection and transposition.
Ensuring vascular supply and muscle integrity during these procedures is crucial.

Purpose of the Study:

To introduce and evaluate a novel surgical method for extraocular muscle resection and transposition.
This technique aims to provide vascular protection and muscle strengthening simultaneously.

Main Methods:

Retrospective review of patient files with pre- and post-operative motility examinations.
A new suturing technique ('sliding shape' design) was employed during rectus muscle surgery.
Sutures were placed to protect blood vessels while facilitating muscle transposition.

Main Results:

Successful complete muscle widening transposition was achieved in patients requiring 7 mm or more resection.
Partial transposition was noted in patients with less than 7 mm of strengthening.
No cases of anterior segment ischemia were observed in patients undergoing three-muscle surgery.

Conclusions:

The 'sliding shape' extraocular muscle plication is a simple, safe, and effective procedure for resection and transposition.
Further studies with larger patient cohorts and longer follow-up are warranted to confirm efficacy.