A 3D printed artificial eye is a true bionics as well as a prosthesis with clearer definition and real depth to the pupil. In contrast to traditional methods, production is done using digital onesTrough Scansinstead of an invasive impression of the eye socket. This is a process that is often so difficult for children that they require general anesthesia. Now, in a world first, patient Steve Verze has replaced his traditional prosthetic eye with a 3D printed version that researchers will test in an upcoming study.
How an artificial eye becomes possible as 3D printing
Steve has needed a prosthetic eye since he was 20 and has always felt insecure because of it. According to the patient, the recently created artificial eye looks amazing and, based on 3D digital printing technology, is only getting better and better. However, it is a precursor to the upcoming joint clinical trial between UCL and Moorfields. In this, researchers will test the effectiveness of 3D printed eyes compared to traditional hand-made eye prostheses. To do this, the team will recruit up to 40 patients. They then examine the prostheses for motility (movement), cosmetics (appearance), fit and function, comfort, and mucus secretion. These criteria should contribute to improving overall benefits when used in daily life. The study participants wear the eye prosthesis for four months. Motility is then assessed at the beginning and after three months of wear.
People have to wear an artificial eye if it has not developed since birth. However, there are also patients who experience such a situation after an accident or when doctors have to remove the eye due to severe pain or cancer. The eye prostheses currently have to be replaced approximately every five years, with each eye socket being unique. With a printed prosthesis, the manufacturing time is halved. After scanning the eye, the software creates a 3D model of the eye socket for the printer. It also scans the healthy eye to ensure an accurate match. The researchers then transfer the files to a 3D printer in Germany, where they are ready for use within 2 ½ hours. The artificial eye is then sent to an ophthalmic prosthetist to be refined, polished and adjusted. The entire process only takes two to three weeks.
