Related Experiment Video
Updated: Jun 24, 2025

Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
Bilateral sterile sub-tenon abscess with vicryl suture reaction following strabismus surgery: A case report
Hanan A Neyaz1, Ismail AlGhamdi2, Ghadh A Alsadhan2
1Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia; Department of Ophthalmology, Ohud Hospital, Madinah, Saudi Arabia.
Introduction And Importance:
After strabismus surgery, infections and complications are uncommon but avoidable with the right aseptic measures. Rarely have cases of non-infectious sub-tenon abscesses been documented in the past; these cases need to be appropriately recognized and treated.
Case Presentation:
In this report we describe a case of bilateral sub-tenon abscess 4 weeks after medial rectus recession. Despite receiving topical antibiotics for 7 days, there was no improvement, and multiple conjunctival cultures and sensitivity showed no growth. Both eye's sub-tenon abscess was drained, irrigated with gentamicin, and the fragile suture was removed.
Clinical Discussion:
Sub-tenon abscess has been associated with bacterial infection which has more sever presentation. Several facts, including the lack of organisms in the pre-operative and intraoperative cultures, the presence of big cells resembling foreign bodies, and the improvement that occurred after suture extrusion, make infection unlikely in this case.
Conclusion:
We concluded that suture reaction is most likely to be responsible for a late-onset sub-tenon abscess with a negative culture and no response to antibiotics, and the suture should be removed.

