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Updated: May 15, 2026

Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
Single pass, single suture technique for repair of traumatic mydriasis
Dewang Angmo1, Tushar Agarwal, Sudarshan Khokhar
1Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Purpose:
We describe a 52-year-old man with pseudophakia and traumatic mydriasis who presented with severe glare.
Methods:
A modification of the Siepser sliding knot technique-single pass, single suture technique-allows the surgeon to create a locking knot at the extraocular space while maintaining a closed chamber, a safer and easier method for traumatic mydriasis repair.
Results:
A reduction of pupil size from 8.0×7.8 mm to 5.5 mm was noted. The patient's complaint of glare was relieved and the glare acuity was 20/40 at 6 months follow-up.
Conclusions:
We present a new, simpler application of the Siepser slipknot which can be used successfully for repair of traumatic mydriasis.
