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Updated: Apr 15, 2026

Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
Pinhole iris-fixated intraocular lens for dysphotopsia and photophobia
Gonzalo Muñoz1, Stephanie Rohrweck1, Hani F Sakla1
1From the Ebsaar Eye Surgery Center (Muñoz, Sakla, Altroudi), Dubai, United Arab Emirates, and Clínica Baviera Castellón (Muñoz, Rohrweck), Castellón, Spain.
Unlabelled:
We present the pinhole iris-fixated diaphragm intraocular lens (IOL), which is a 1-piece black polycarbonate IOL with rigid iris-fixated haptics, an 8.5 mm overall length, a 6.0 mm diameter optic, and a central opening, the pinhole. The IOL was implanted in a 36-year-old man who had a history of debilitating dysphotopsia (star burst, halos, glare, and ghosting) and severe light sensitivity in his right eye following several interventions for keratoconus. The diameter of the central opening of the pinhole IOL, 2.0 mm, was based on the patient's corneal aberration profile. Postoperatively, the dysphotopic symptoms and photophobia markedly improved. We recommend the use of the pinhole iris-fixated IOL in patients with severe photophobia or dysphotopsia refractory to other treatment modalities.
Financial Disclosure:
No author has a financial or proprietary interest in any material or method mentioned.
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