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Comparison of three surgical techniques for internal angular dermoid cysts: a randomized controlled trial
Mostafa M Diab1, Richard C Allen2, Ayman E Abdel Ghafar3
1Department of Ophthalmology, Faculty of Medicine, Fayoum University, Al Fayoum, Egypt. Mmd11@fayoum.edu.eg.
Eye (London, England)
|November 21, 2021
Summary
The direct mini-incision and lid crease techniques offer better scar quality for internal angular dermoid cyst removal than the sub-brow method. The mini-incision is faster, while the lid crease yields the least visible scars.
Area of Science:
- Ophthalmology
- Pediatric Surgery
Background:
- Internal angular dermoid cysts are congenital tumors that can affect vision and appearance.
- Surgical excision is the primary treatment, with various techniques available.
Purpose of the Study:
- To compare the outcomes of three surgical techniques for removing internal angular dermoid cysts: lid crease, sub-brow, and direct mini-incision.
Main Methods:
- A single-center trial randomized 47 children with internal angular dermoids into three surgical groups.
- Outcomes measured included operative time, scar quality (Stony Brook Scar Evaluation Scale), scar visibility, and family satisfaction.
Main Results:
- Direct mini-incision had significantly shorter operative times compared to lid crease and sub-brow techniques.
- Lid crease resulted in the least visible scars, while both lid crease and mini-incision showed superior scar quality compared to sub-brow.
- 100% family satisfaction was reported for the lid crease technique, compared to 73.3% for sub-brow and 40% for mini-incision.
Conclusions:
- Lid crease and direct mini-incision approaches provide superior scar quality and minimal visibility for dermoid cyst removal compared to the sub-brow technique.
- The lid crease technique, while yielding excellent cosmetic results, involves longer operative times, especially for cysts located outside the orbital rim.

