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Corneal hazards in use of Simmons shell
Summary
The Simmons shell is a risky treatment for post-trabeculectomy overfiltration, with complications like corneal abscess and abrasion. Close monitoring and early removal are crucial, especially in malnourished patients.
Area of Science:
- Ophthalmology
- Surgical Complications
Background:
- Post-trabeculectomy overfiltration can lead to shallow or flat anterior chambers.
- The Simmons tamponade shell has been used to manage this complication.
Purpose of the Study:
- To evaluate the efficacy and safety of the Simmons tamponade shell in managing post-trabeculectomy overfiltration.
Main Methods:
- A Simmons tamponade shell was applied in 10 cases of post-trabeculectomy overfiltration.
- Outcomes and complications were closely monitored.
Main Results:
- The Simmons shell was successful in only 3 out of 10 cases.
- Complications included corneal abscess (1 case) and corneal abrasion/epithelial loss (4 cases).
- Corneal toxicity necessitated premature shell removal in several patients.
Conclusions:
- The Simmons shell has limited success and significant risks for managing post-trabeculectomy overfiltration.
- Close monitoring for corneal toxicity and careful use in malnourished patients are essential.