Black Diaphragm Intraocular Lens Implantation in Patients with Aniridia

Purpose: To review the management outcomes of black diaphragm intraocular (BDI) lens implantation in Arab patients with aniridia. Methods: Patients with aniridia undergone BDI lens implantation at our institution between 2013 and 2014 were included. Uncorrected visual acuity (UCVA), manifest refraction, and best‑corrected visual acuity (BCVA) were evaluated before and 6 months and yearly after BDI lens implant surgery until the last visit. Intra‑ and postoperative complications were noted. Results: Our series comprised 14 patients (8 males) with aniridia. The median duration of follow‑up was 30 months (25% quartile). Ocular parameters, refractive status, and vison were all significantly improved at the last follow‑up compared to the preoperative values (P < 0.05 for all comparisons). All patients reported a significant decrease in photophobia and glare. Postoperatively, 11 eyes (78%) gained 2 or more lines of UCVA. At the last follow‑up, BCVA increased by 2 or more lines in all cases. Early postoperative complications included main wound leakage (one eye) and anterior chamber hyphema (one eye). Late (≥6 months) complications included corneal decompensation (one eye), failed penetrating keratoplasty graft (2 eyes), and subluxation of a scleral fixated BDI lens (one eye). Surgical interventions performed to manage complications included penetrating keratoplasty in 2 eyes with corneal decompensation and failed graft (one each), and re‑suturing of a subluxated intraocular lens (one eye). Conclusion: BDI lenses seem to be a safe and effective iris prosthetic with intraocular lens combination surgery for patients with congenital or traumatic aniridia. Periodic evaluation and prompt management of complications are recommended.