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Muscles of the Eye01:20

Muscles of the Eye

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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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Related Experiment Video

Updated: Feb 16, 2026

Surgical Correction for Pediatric Epiblepharon and Trichiasis
03:59

Surgical Correction for Pediatric Epiblepharon and Trichiasis

Published on: July 8, 2025

627

A Conjunctival Retractor during Strabismus Surgery.

Yoshiaki Shimada1, Masayuki Horiguchi1

  • 1a Department of Ophthalmology , Fujita Health University Hospital , Toyoake , Aichi , Japan.

Strabismus
|December 21, 2017
PubMed
Summary
This summary is machine-generated.

A conjunctival retractor aids strabismus surgery by expanding incisions for better muscle exposure. This valuable tool improves surgical access, though caution is advised for elderly patients due to tearing risks.

Keywords:
Conjunctiva/Tenon’s capsuleretractorstrabismus

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Area of Science:

  • Ophthalmology
  • Surgical Techniques

Background:

  • Strabismus surgery traditionally involves conjunctival incisions.
  • Fornix incisions offer advantages but require adequate exposure of muscle insertion sites.

Discussion:

  • A novel conjunctival retractor was employed to facilitate strabismus surgery via a fornix incision.
  • The retractor expands the conjunctiva/Tenon's capsule incision, providing a wide surgical field.
  • This enhanced visualization aids in precisely identifying the entire muscle insertion area.

Key Insights:

  • The conjunctival retractor significantly improves surgical field exposure during strabismus procedures.
  • Facilitates accurate localization and manipulation of extraocular muscles through fornix incisions.
  • Mitigates challenges associated with limited exposure in traditional approaches.

Outlook:

  • Further studies could explore modifications to minimize conjunctival tearing risks, especially in vulnerable patient populations.
  • Potential for wider adoption in strabismus surgery to enhance precision and efficiency.
  • Investigating long-term outcomes and patient-reported benefits associated with this technique.