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An ocularist impression fitting is defined as a specialized procedure where a soft; dental-grade molding material is injected into the eye socket to create an exact physical replica of its internal shape. This process is used to:
No two eye sockets are shaped the same. Following an enucleation or evisceration; the internal tissue can be irregular or asymmetrical. An impression fitting ensures the prosthetic sits flush against the tissue; which prevents the accumulation of bacteria and ensures the prosthetic does not shift or fall out during daily activities.
The ocularist places a specialized tray in the socket and injects a medical-grade alginate or silicone material. The patient is asked to:
The primary goal is to have the prosthetic eye move in synchronization with the natural eye. By capturing the exact shape of the muscle "stumps" or the orbital implant; the ocularist can carve the back of the prosthetic to catch those movements; creating a more realistic and lifelike appearance for the wearer.
Most patients describe the process as a feeling of fullness or pressure rather than pain. The molding material is cool and soft; and because it is designed for sensitive tissues; it does not cause irritation. The entire fitting process is usually completed in a single office visit and is suitable for all ages.
A new impression is typically taken every 5 to 7 years. Over time; the tissues of the eye socket can change or shrink; leading to a loose fit or drooping of the prosthetic. A new impression ensures the prosthetic continues to fit properly and maintains a healthy environment for the socket tissue.
Yes; children often require frequent impression fittings as their facial structures grow. It is vital for children to have a well-fitted prosthetic to ensure the eye socket and surrounding bones develop at the correct rate and maintain symmetry with the rest of the face.
While the fitting ensures a good seal; you should still remove and clean the prosthetic periodically using mild; baby shampoo and warm water. Your ocularist will provide a specific schedule for removal based on how well your socket produces natural lubrication and how the impression fits.