Description

The 67G Aniridia IOL by Morcher is a specialized intraocular lens designed to address the unique needs of patients with aniridia or partial aniridia. This condition, often resulting from congenital factors or ocular trauma, can lead to significant light sensitivity and cosmetic concerns. The lens aims to alleviate these issues by reducing photophobia and enhancing the eye's appearance.

Key Features

• Total Diameter: 12.5 mm
• Optic Diameter: 3.0 mm
• Diaphragm Range: 3.0–10.0 mm
• Standard Diopter Range: 10.0–30.0 D (0.5 D increments)

The lens is typically implanted in the capsular bag but offers flexibility for sulcus placement or scleral fixation using 9-0 double-armed prolene sutures with spatula needles. This versatility is particularly beneficial in cases of extreme subluxation, ensuring stable positioning within the eye.

Optical Specifications

• Theoretical Standard Diopter: 22.0 D
• Theoretical A-Constant (optical): 118.7 (scleral sutured: 119.6)
• Refractive Index of Optic: 1.49
• Recommended Incision Size: >10.0 mm

The lens features a clear PMMA optic and a black PEMA diaphragm, with a peripheral colored region designed to resemble the iris. This design includes various pigmentation options to closely match the natural iris, providing a more seamless cosmetic integration. The inclusion of a UV filter and the availability of tinted IOLs further help in reducing photophobia.

Implantation Considerations

• Theoretical Anterior Chamber Depth (optical): 5.37 (scleral sutured: 5.90)
• Color: Black

The recommended incision size for implantation is greater than 10.0 mm. Surgeons should be aware of potential risks such as surgical trauma, which may increase the likelihood of glaucoma, corneal decompensation, and limbal stem cell deficiency.

Benefits

By mimicking the appearance of the iris and managing light sensitivity, the 67G Aniridia IOL enhances both visual function and aesthetic outcomes for individuals with aniridia. Its comprehensive range of diopter options, available upon request, ensures tailored refractive correction, making it a versatile solution for diverse patient needs.