Related Experiment Video
Updated: Jan 7, 2026

03:59
Surgical Correction for Pediatric Epiblepharon and Trichiasis
Published on: July 8, 2025
417
Upper eyelid retraction and superior recti stretched scar
Juliana Albano de Guimarães1, Christine M Morello Abbud2
1Department of Ophthalmology, Hospital Imaculada Conceição, Patos de Minas, Brazil.
Strabismus
|December 29, 2025
Summary
Stretched scars in the superior rectus muscles can cause upper eyelid retraction after strabismus surgery. Surgical correction of these stretched scars successfully resolved the eyelid retraction and improved eye alignment.
Area of Science:
- Ophthalmology
- Strabismus Surgery
- Oculoplastics
Background:
- Stretched scars, characterized by elongated muscle insertions, are a known cause of secondary strabismus.
- While common after medial rectus recessions, stretched scars in superior rectus muscles are less frequently reported.
Purpose of the Study:
- To describe a unique case of upper eyelid retraction.
- To investigate the role of stretched scars in the superior rectus muscles as a cause of this retraction following strabismus surgery.
Main Methods:
- A 26-year-old female patient with persistent upper eyelid retraction and exotropia was evaluated.
- Surgical exploration revealed stretched scars in the superior recti muscles.
- Scarred muscle segments were excised and reattached.
Main Results:
- The patient presented with upper eyelid retraction and exotropia four years post-strabismus surgery.
- Intraoperative findings included stretched scars in both superior recti muscles.
- Postoperative follow-up showed resolution of upper eyelid retraction and orthotropia.
Conclusions:
- Stretched scars in the superior rectus muscles can lead to secondary upper eyelid retraction.
- Surgical management involving excision of stretched scars can effectively treat this complication.
Related Concept Videos
Muscles of the Eye
3.6K
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...
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...
3.6K
Accessory Structures of the Eye
3.3K
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...
3.3K
Muscles of the Shoulder
8.6K
The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
Anterior Thoracic Muscles
The anterior thoracic muscles include the serratus anterior, subclavius, and...
Anterior Thoracic Muscles
The anterior thoracic muscles include the serratus anterior, subclavius, and...
8.6K

