Losing an eye or being born with defects that necessitate removal is traumatic on multiple levels. Beyond altered vision, patients wrestle with self-image issues owing to aesthetic imperfections of ocular prosthetics. The convoluted manual process of crafting customized prosthetic eyes only exacerbates matters. Now a team from Moorfields Eye Hospital has pioneered 3D printing techniques that can create superior-looking prosthetic eyes in under 90 minutes.
Traditionally, ophthalmologists manually create a wax mold of the patient's eye socket, which is then hand-painted and adjusted repeatedly to match the good eye's appearance. This lengthy artisanal approach often spanned days per prosthesis. 3D printing offered potential improvements but still required extensive digital sculpting expertise.
The breakthrough research combines optical coherence tomography (OCT) and machine learning. OCT non-invasively captures microscopic 3D scans of the eye socket's unique contours. These scans feed into algorithms that automatically design and optimize the prosthetic eye's form to ensure ideal fit.
Another algorithm references the patient's healthy eye to replicate the iris pattern and colors on the 3D printed eye. This automated bio-mimicry generates aesthetic outcomes surpassing manual methods. The final lifelike prosthesis gets 3D printed in under 90 minutes using multi-material color printers.
Already over 200 patients at Moorfields have benefiting from rapid prosthesis turnarounds. Beyond productivity gains, the precision scanning and biomimetic digitization vastly improve prosthetic comfort and appearance. Patients report renewed confidence in social settings thanks to less visibly conspicuous prosthetics.
While most adults stand to benefit, the techniques may require more validation in pediatric contexts. Nevertheless, by synergizing medical imaging with digitization and automation, the breakthrough has sparked a transformation in ocular prosthetics care. It moves the field from being an isolated craft, dependent on the skills of individual practitioners, into an accurate, consistent and scalable manufacturing process. The accelerated production of comfortable, realistically-colored prosthetics could give patients - both children and adults - a better shot at quickly overcoming trauma and thriving socially.