Related Experiment Video
Updated: Aug 7, 2026

Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
[Mydriasis--areflexia syndrome in eye with posterior chamber intraocular lens]
Purpose:
To describe a rare complication of classical EEC technique with posterior chamber IOL implantation in the sulcus.
Patients And Methods:
This is a retrospective study of 296 eyes which underwent EEC and CP implantation. None was operated with phacoemulsification. The posterior chamber IOL originated from 4 renowned manufacturers.
Results:
In 25 eyes, at 2 to 7 month after surgery, we noticed a mydriasis with pupillary areflexia, though the majority (20 eyes) presented a miotic pupil in the days following surgery.
Conclusion:
The authors discuss possible causes of such a delayed complication: direct trauma of the iris, difficult haptic introduction in the sulcus, toxic material on the i., o.l. More probably the interaction of more than a cause is necessary for this delayed complication.
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