Artificial iris-lens diaphragm in reconstructive surgery for aniridia and aphakia

Area of Science:

• Ophthalmology
• Biomedical Engineering
• Surgical Innovation

Background:

• Iris deficiencies, aphakia, and cataracts significantly impact visual function and quality of life.
• Existing treatments for iris and lens pathology may have limitations in addressing both functional and cosmetic concerns.

Purpose of the Study:

• To evaluate the efficacy and safety of surgically implanted artificial iris-lens diaphragms.
• To assess the device's utility in patients with iris deficiencies, aphakia, or cataracts.

Main Methods:

• An interventional case series involving 19 patients (20 eyes) with traumatic or congenital iris and lens pathology.
• Implantation of a novel elastic iris-lens diaphragm with various fixation techniques.

Main Results:

• 75% of eyes showed improved corrected visual acuity; all patients reported satisfaction with cosmetic results and reduced glare/photophobia.
• Complications included vitreous hemorrhage, hyphema, ciliochoroidal detachment, and inflammation; no device decentration or retinal detachment occurred.
• One case of persistent intraocular pressure rise and one of cystoid macular edema were noted.

Conclusions:

• Artificial iris-lens diaphragm implantation is effective in improving visual outcomes and addressing cosmetic deficits in relevant patient populations.
• The device appears safe, but long-term efficacy and safety require further investigation with larger cohorts and extended follow-up.